- Removed the '#define FE_CAN_2ND_GEN_MODULATION', since it was wrong and the
  flag is now in the driver, anyway.
- The full-featured DVB cards are now given the TS data directly for replay
  (thanks to Oliver Endriss for enhancing the av7110 driver to make it replay
  TS data). The patch from ftp://ftp.cadsoft.de/vdr/Developer/av7110_ts_replay__1.diff
  implements this change in the driver.
  The patch av7110_v4ldvb_api5_audiobuf_test_1.diff mentioned in version 1.7.2
  is still necessary to avoid audio and video glitches on some channels.
- Added a typecast in cUnbufferedFile::Write() to avoid an error message when
  compiling on 64 bit systems.
- Added some missing 'const' statements to cBitmap (thanks to Andreas Regel).
- Fixed returning complete PES packets in cTsToPes::GetPes() (thanks to Reinhard
  Nissl).
- Added a missing Detach() in cTransfer::Activate() (thanks to Marco Schlüßler).
- Added clearing the TS buffers in cDevice::Detach() (thanks to Marco Schlüßler).
- Fixed incrementing the continuity counter in cPatPmtGenerator::GetPmt() (thanks
  to Johann Friedrichs).
- Fixed removing deleted recordings in case there is a problem. Once a recording
  caused a problem with removing, no others were removed any more and an ongoing
  recording could fill up the disk and cause other recordings to be deleted
  automatically (reported by Reinhard Nissl).
- Added "DEFINES += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
  to Make.config.template (thanks to Johann Friedrichs for pointing this out).
  Plugin authors should add this line to their Makefile or Make.config if they use
  file access functions that need special versions for 64 bit offsets.
- The new command line option -i can be used to set an "instance id", which will
  be used to distinguish recordings of the same broadcast made by different instances
  of VDR (suggested by Frank Schmirler). This replaces the use of the "resume id"
  that was introduced in version 1.7.3.
- Added checking mutexCurrentAudioTrack to cDevice::PlayTs() (thanks to Reinhard
  Nissl for pointing this out).
- Fixed handling the pointer field in cPatPmtParser::ParsePmt() (thanks to Frank
  Schmirler - sorry I swapped two lines when adopting the original patch).
- Checking the remaining packet length after processing the pointer field in
  cPatPmtParser::ParsePat() and cPatPmtParser::ParsePmt() (suggested by Frank
  Schmirler).
- Checking the pointer field in cPatPmtParser::ParsePmt() only in 'payload start'
  packets (suggested by Frank Schmirler).
- Changed cPatPmtGenerator to make sure the PMT pid doesn't collide with any of
  the actual pids of the channel.
- Fixed cDevice::PlayTsAudio() and made cDevice::PlayTsVideo() return 0 if
  PlayVideo() didn't play anything.
- Added an 'int' typecast to calculations involving FramesPerSecond() to avoid
  compiler warnings (reported by Winfried Koehler).
- Fixed detecting frames for pure audio recordings.
- Fixed editing PES recordings. The frame type in the index.vdr file generated for
  the edited PES recording is set to 1 for I-frames and 2 for all others (P- and
  B-frames). The exact frame type doesn't matter for VDR, it only needs to know if
  it's an I-frame or not.
- The PAT/PMT is now only processed if its version changes (reported by Reinhard
  Nissl).
- Fixed handling the maximum video file size (reported by Udo Richter).
- Improved fast-forward/-rewind for audio recordings. The actual data is now sent
  to the output device, so that it can be replayed and thus cause the proper delay.
  For pure audio recordings the audio is no longer muted in fast-forward/-rewind
  mode, so that some orientation regarding the position within the recording is
  possible. There may still be some offset in the replay position displayed by the
  progress indicator when switching from fast-forward/-rewind to play mode, as well
  as in the current position during normal play mode. This is due to the various
  buffers between the player and the output device and will be addressed later.
  Note the new function cDevice::IsPlayingVideo(), which is used to inform the
  player whether there is video data in the currently replayed stream. If a derived
  cDevice class reimplements PlayTs() or PlayPes(), it also needs to make sure this
  new function works as expected.

- Fixed setting the current subtitle track in Transfer-Mode (reported by Petri Helin,
  thanks to Reinhard Nissl for pointing out that cDevice::Transferring() doesn't
  return the right value in the early stage of channel switching).
- Updated the Danish OSD texts (thanks to Mogens Elneff).
- Updated the Dutch OSD texts (thanks to Carel Willemse).
- Fixed various spelling errors and improved PLUGINS.html (thanks to Ville Skyttä).
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- Fixed the format in cRemote::Put() to use "%016llX" instead of "%016LX" (thanks
  to Ludwig Nussel for pointing this out).
- Revised the fix of calculating the scrollbar height in the skins. The scrollbar
  handle now always has a height that is at least the width of the scrollbar.
- When switching the device that's used for live viewing away from the current
  transponder in favor of an upcoming recording, an attempt is now made to stay
  on the current channel by possibly going into 'Transfer Mode'.
- The CAM menu now stays open as long as it is automatically updated, even without
  pressing a remote control key. This is important when updating the CAM firmware
  from the transponder.
- No longer trying to switch to an available channel if the primary device has
  no valid programme and a menu is open (avoids interference with the CAM in
  case a CAM menu is open).
- Increased the valid range of the "Subtitle offset" setup option to -100...100
  (thanks to Rolf Ahrenberg).
- Added the backslash ('\') to the list of characters that need to be escaped
  when executing external commands (thanks to Peter Bieringer for reporting this one).

- Updated the Italian OSD texts (thanks to Diego Pierotto).
- Added option -i to the pictures plugin's pic2mpg to ignore unknown file types.
- Revoked the switch to the "multiproto" driver in order to make a new stable
  version before making this big switch and forcing all users to install a
  driver that is not yet in the kernel source. The removed code will reappear
  in version 1.7.0.
  Note that you may need to switch back to an older version of your channels.conf
  file if you have already used version 1.5.14, because it introduced new parameters.
- Added the new command line option --userdump to enable core dumps in case VDR
  is run as root with option -u (thanks to Hans-Werner Hilse).
- Speeded up anti-aliased font rendering by caching the blend indexes (based on
  a suggestion by Martin Wache).
- Fixed setting the OSD area in the pictures plugin.
- Ignoring "repeat" and "release" keys in the time search entry mode during replay,
  to avoid inadvertently leaving it in case a key is pressed too long (suggested
  by Andreas Brugger).
- Improved sending all frames to devices that can handle them in fast forward
  trick speeds, including subtitles (thanks to Timo Eskola).
- The section handler is now stopped before the device is destroyed, to avoid
  accessing file handles after they have become invalid (thanks to Reinhard
  Nissl for reporting an invalid access when ending VDR, and to Deti Fliegl for
  a patch that was used to implement StopSectionHandler()).
- Fixed setting the date in the channel display of the classic and sttng skins,
  to avoid unnecessary OSD access (thanks to Marco Schlüßler).
- The free disk space is now also displayed in the title of the "Recordings"
  menu (suggested by Walter Koch).
- Changed the message "Upcoming VPS recording!" to "Upcoming recording!" because
  it applies to non-VPS recordings as well.
- Fixed a loss of a timer's 'recording' flag after modifying it via MODT.
- Fixed detecting directories in cFileNameList::Load().
- Running the thread that removes deleted recordings at a low priority to (maybe)
  avoid stuttering replay in case the thread is run during replay.
- Limiting the length of the recording name in timers in case VDR is run with
  --vfat, in order to avoid names that are too long for Windows (suggested by Rolf
  Ahrenberg).
- Using cString::sprintf() instead of asprintf() (thanks to Wolfgang Rohdewald
  for pointing out a possible problem if the return value is not checked).
  Plugin authors may want to consider doing the same. For convenience there is now
  an additional version of cString::sprintf() that accepts a va_list parameter.
- When deleting the recording that is currently replayed, the replay is now
  stopped immediately (thanks to Mikko Matilainen for reporting a possible crash
  if the Info key is pressed after deleting the currently replayed recording).
- Updated the Russian OSD texts (thanks to Oleg Roitburd).
- When determining the amount of free disk space, any deleted (but not yet removed)
  recordings on different file systems (that are mounted under the video directory)
  are no longer taken into account.
- When running out of disk space during a recording, only such deleted or old
  recordings are removed, that actually are on the video directory file system(s).
  This prevents VDR from accidentally deleting recordings on other file systems,
  which would not add any free space to the video directory.
- Implemented the cStatus, cDevice and cPlayer functions for setting subtitle tracks
  in plugins (thanks to Petri Hintukainen).
- Added cStatus::TimerChange() to inform plugins about changes to the list of timers
  (based on a patch from Benedikt Elser).
- Added new cStatus functions to the 'status' plugin.
- Added missing #include <limits.h> to epg.c and menuitems.h (thanks to Ville Skyttä).
- The new function cSkin::SetScrollbar() can be implemented by skins to display
  a scrollbar in every list menu. The 'classic' and 'sttng' skins have been
  changed accordingly, as well as the 'skincurses' plugin.
- Introduced 'operator const void * ()' in cString to catch cases where operator*()
  should be used.
- Fixed calculating the scrollbar sizes in the skins.

- Fixed the declaration of cSubtitleObject::Decode8BppCodeString() (thanks to
  Gregoire Favre).
- The new setup option "Miscellaneous/Emergency exit" can be used to turn off
  the automatic restart of VDR in case a recording fails for some reason.
- The kInfo key is now propagated to any open menu, so that it can react to it
  in a context sensitive manner (suggested by Andreas Brugger). If there is
  no menu open it will show the info of the current broadcast or replay.
- cTimeMs now uses the monotonic clock, if available (thanks to Petri Hintukainen).
- Fixed cVector::Clear() and cStringList::Clear().
- Added cString::Truncate().
- Fixed the "i18n:" target in the "newplugin" script, so that it can create the
  initial *.pot file.
- Fixed handling the '-l' option.
- Fixed error handling in cCuttingThread::Action() (thanks to Udo Richter).
- Fixed a loss of the date display in the "classic" skin's main menu (reported by
  Andreas Brugger).
- Added a missing setting of lastFreeMB in cMenuMain::Update() (reported by
  Andreas Brugger).
- Added '-Wno-parentheses' to the compiler options in order to avoid silly compiler
  warnings for expressions like 'a || b && c', where GCC 4.3 wants to force the
  programmer to write 'a || (b && c)', while everybody knows that '&&' links
  stronger than '||' (reported by Tobias Grimm).
- Updated the Hungarian language texts (thanks to István Füley).
- Fixed displaying weekday names in the Schedule menu if the system uses UTF-8
  (reported by Jiri Dobry).
- The new plugin "pictures" implements a simple picture viewer.
  See PLUGINS/src/pictures/README for details.
- The automatic shutdown is now suppressed if the remote control is currently
  disabled (suggested by Helmut Auer, implemented by Udo Richter).
- Added a section about "Logging" to PLUGINS.html (suggested by Torsten Kunkel).
- Enhanced the SVDRP command CLRE to allow clearing the EPG data of a particular
  channel (thanks to Benjamin Hess).

- Implemented handling DVB subtitles (thanks to Marco Schlüßler, and also to
  Pekka Virtanen for writing the subtitle plugin, which helped in implementing
  subtitle handling in VDR).
- The new remote control key "Subtitles" can be used to bring up the list
  of available subtitles.
- The new setup option "DVB/Subtitle languages" can be used to define the
  preferred languages for subtitles.
- Fixed selecting the audio track when pressing Ok in the Audio menu (thanks
  to Marco Schlüßler).
- Implemented display of DVB subtitles in live viewing mode.
- Implemented subtitle track selection.
- Implemented bitmap color reduction and shrinking to display subtitles even
  on devices that can't display the necessary number of colors.
- Added compatibility mode for playback of recordings made with the subtitles
  plugin (with some help from Rolf Ahrenberg).
- The new setup option "DVB/Subtitle offset" can be used to shift the location
  of the subtitles in the vertical direction.
- The new setup options "DVB/Subtitle foreground/background transparency"
  define an additional level of transparency for the foreground and background
  color of subtitles.
- Existing recordings made with the subtitle plugin can be given an 'X' record
  in their info.vdr file, so that subtitles can be automatically selected upon
  replay, according to the preferred language setup, as in
  X 3 03 ger deutsch
  (see vdr.5). Note that these entries need to be added in the proper sequence,
  so that they correspond with the actual track languages in the recording.
- Now generating translation files without line numbers to avoid unnecessarily
  large diffs. Plugin authors may want to replace the -F option with
  --no-location in the xgettext and msgmerge calls in their Makefiles.
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
- Added a missing Channels.SetModified(true) call when deleting or moving a
  channel in the Channels menu (reported by Halim Sahin).
- Fixed a missing '-' at the next to last line of SVDRP help texts (reported by
  Denis Knauf).
- Added a missing SetVolumeDevice() call in cDevice::SetPrimaryDevice() (reported
  by Reinhard Nissl).
- Fixed a crash when pressing Left while at the first character of a cMenuEditStrItem
  (thanks to Christian Wieninger).
- Only creating a new cDvbOsdProvider in cDvbDevice::MakePrimaryDevice() if 'On'
  is true (i.e. this device is being made the primary device).
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- Fixed handling reallocated memory in cCharSetConv::Convert() (reported by Udo
  Richter).
- Fixed a new[]/delete mismatch in cMenuEditStrItem::LeaveEditMode() (thanks to
  Udo Richter).
- Implemented sending all frames to devices that can handle them in fast forward
  trick speeds (thanks to Timo Eskola).
- Updated the Hungarian language texts (thanks to Thomas Günther).
- Fixed description of DeviceSetAvailableTrack() and cReceiver(), and added an
  example ~cMyReceiver() in PLUGINS.html (thanks to Marco Schlüßler).
- Improved the description of where logging goes in the INSTALL file (thanks to
  Elias Luttinen).
- Added a note about how to initiate internationalization support to the
  README.i18n file. The Makefile generated by the 'newplugin' script now has the
  'i18n' target automatically create an initial 'po/pluginname.pot' file.
  Plugin authors may want to add the '$(I18Npot)' dependency to the 'i18n'
  target in their Makefiles, as in
  i18n: $(I18Npot) $(I18Nmo)
  (based on a suggestion by Torsten Kunkel).
- Removed a duplicate ',' from the ca_ES.po file (thanks to Thomas Günther).
- Added the 'ß' character to the "allowed characters" in the de_DE.po file
  (suggested by Thomas Günther).
- Made the default copy ctor of cRecording private (thanks to Markus Hahn).
  Same for the assign operator.
- Added cRecording::Undelete() (based on a patch from Markus Hahn).
- Added cDevice::CloseFilter() to allow a device to have complete control over
  both opening and closing section filters (thanks to Rolf Ahrenberg).
- Some fixes to PLUGINS.html (thanks to Rolf Ahrenberg).

- Fixed handling locale directories with a large number of entries (thanks to
  Anssi Hannula).
- Updated Turkish language texts (thanks to Oktay Yolgeçen).
- Fixed stripping the context in I18nTranslate() (reported by Christian
  Wieninger).
- Fixed detecting whether a particular locale is actually supported.
- Added a note about LANG having to be set to a valid locale in INSTALL
  (suggested by Matthias Fechner).
- Fixed some compiler warnings with gcc-4.2.0 (thanks to Matthias Schwarzott).
- Fixed setting the locale file name in i18n-to-gettext.pl (thanks to Matthias
  Schwarzott).
- Changed the default for LOCDIR in Makefile and Make.config.template to
  "./locale", so that internationalization works by default when running VDR
  from within its source directory (suggested by Anssi Hannula).
- Added the new i18n macro trVDR(), which can be used by plugins to mark
  texts they want to reuse from VDR's core translations (suggested by Matthias
  Becker).
- VDR now uses the default configuration directory as defined in the CONFDIR
  varable in the Makefile (thanks to Thomas Schmidt).
- The SVDRP command LSTC can now list the channels with group separators if the
  option ':groups' is given (thanks to Andreas Mair).
- Added a missing error report to cCuttingThread::Action() (thanks to Udo
  Richter).
- There can now be more than one OSD at the same time. At any given time,
  however, only one of them can be active (and thus visible). This is to
  allow displaying things like subtitles in an easy way. A cOsd therefore
  now has a "Level", and only the OSD with the smallest level will be
  displayed. The level 0 OSD is special, and there can only be one with
  this level. If there is more than one OSD with a particular level, only
  the one that was created first will be displayed.
  Plugins that provide an OSD need to adjust their cOsdProvider::CreateOsd()
  function to hand through the Level.
- Fixed checking for ttDolbyLast in cDevice::SetCurrentAudioTrack() (thanks
  to Marco Schlüßler).

- All logging now goes to LOG_ERR, because some systems split error, info and
  debug messages into separate files, which repeatedly caused extra efforts to
  find out when incomplete log excerpts were attached to problem reports in
  the past.
- Updated the Estonian OSD texts (thanks to Arthur Konovalov).
- Fixed a problem with characters >0x7F in the modified version of skipspace()
  (thanks to Marco Schlüßler).
- Fixed a bug I introduced when simplifying the original patch for detecting
  Premiere NVOD channel links (crash reported by Malte Schröder).
- Internationalization is now done with 'gettext' (following a suggestion by
  Lucian Muresan). Plugin authors may want to use the Perl script
  'i18n-to-gettext.pl' to convert their internationalized texts to the gettext
  format (see the instructions inside that script file). The function
  cPlugin::RegisterI18n() is still present for compatibility, but doesn't
  have any more functionality. So plugins that don't convert their texts to
  the gettext format will only present English texts.
  See PLUGINS.html, section "Internationalization", for instructions on how
  to make strings in arrays translatable.
  See README.i18n for information on how to create new or maintain existing
  translations.
- The three letter language codes and their aliases are stored in i18n.c, and
  each translation file only contains one of them to link that language name
  to the code.
- The 'newplugin' script has been extended to generate the Makefile section
  for i18n support.
- The parameter OSDLanguage in 'setup.conf' is now a string and holds the locale
  code of the selected OSD language (e.g. en_US). If Setup.OSDLanguage is not
  set to a particular locale that is found in VDR's locale directory, the
  locale as defined in the system environment is used by default.
- The list of tracks given in cStatus::SetAudioTrack() is now NULL terminated,
  so that plugins can actually use all the strings in the list, not just the
  one pointed to by Index (thanks to Alexander Rieger).
- Fixed handling kLeft in the calls to cStatus::MsgOsdTextItem() (thanks to
  Alexander Rieger).
- Added the "...or (at your option) any later version" phrase to the license
  information of all plugins, and also the 'newplugin' script (suggested by
  Ville Skyttä). Plugin authors may want to consider doing the same.
- Fixed the link to the GPL2 at http://www.gnu.org in vdr.c (thanks to Ville
  Skyttä).
- cBitmap::SetXpm() now checks whether the given Xpm pointer is not NULL, to
  avoid a crash with files that only contain "/* XPM */" (suggested by Andreas
  Mair).
- Added a debug error message to cReceiver::~cReceiver() in case it is still
  attached to a device (thanks to Reinhard Nissl).

- Fixed some spelling errors in 'newplugin' (thanks to Ville Skyttä).
- Fixed a busy loop in fast forward if the next video data file is missing
  (thanks to Reinhard Nissl).
- Fixed handling frequencies in NitFilter::Process() (thanks to Anssi Hannula).
- Fixed a race condition with signal handlers at program exit (thanks to Udo
  Richter).
- Non-primary devices in Transfer mode are now also used for recording (thanks
  to Anssi Hannula).
- Fixed handling ChannelUp/Down keys if there is currently a replay running
  (thanks to Marco Schlüßler).
- The new SVDRP command REMO can be used to turn VDR's remote control off and
  on in case other programs need to be controlled (based on patches from Krzysztof
  Parma and Helmut Auer).
- Increased the maximum number of CA system ids to cope with the AlphaCrypt
  CAM's version 3.11 firmware.
- Fixed getting the code setting from the locale (thanks to Matthias Schwarzott).
- Implemented support for Freetype fonts (based on a patch from Alexander Riedel).
  The font names and sizes can be adjusted in the "Setup/OSD" menu.
  Note that VDR now requires freetype fonts to be installed in
  /usr/share/fonts/truetype.
- If the OSD device in use has at least 8bpp bitmap depth and this is also
  used by the current skin, Freetype fonts are displayed "anti-aliased".
  The new setup parameter "OSD/Anti-alias" can be used to turn this off.
- The new function cOsd::SetAntiAliasGranularity() can be used to help the OSD
  in managing the available color palette entries when doing anti-aliasing.
  Skins that use 8bpp bitmaps can call this function with the maximum number
  of colors used, and the maximum number of color combinations. The OSD will
  then evenly split the available palette entries between the various colors
  combinations, so that fonts can be "anti-aliased". By default a total of
  10 colors and 10 combinations is assumed.
- The pixel fonts have been completely removed from the VDR source.
- VDR is now "UTF-8 aware". It handles strings according to the character
  encoding used on the user's system. All internationalization strings and
  incoming SI data are converted to the system encoding.
- Plugins that handle strings need to be aware that on systems with UTF-8
  encoding a "character symbol" may consist of more than a single byte in
  memory. The functions and macros named Utf8...() can be used to handle
  strings without needing to care about the underlying character encoding
  (see tools.h for details).
- Even though the weekdays of repeating timers are presented to the user as UTF-8
  characters in the OSD, the timers.conf file and the SVDRP timer commands still
  use single byte characters ("MTWTFSS") to make sure this information is handled
  correctly between systems with different character encodings.
- Added a missing i18n string for "CAM" in the Turkish OSD texts.
- Improved editing strings that are too long to fit into the editable area.
- Changes to the OSD settings in the "Setup/OSD" menu now immediately take effect
  when the "Ok" key is pressed.

- Added cDevice::HasCi() so that devices with Common Interface can be avoided
  when tuning to an FTA channel, thus preserving the CAM resources even on budget
  DVB cards (suggested by Petri Helin).
- Fixed i18n characters for the Hungarian texts (thanks to Thomas Günther).
- Now using cPipe instead of popen() in cCommand::Execute() to avoid problems
  with open file handles when starting background commands (thanks to Reinhard
  Nissl).
- Removed 'assert(0)' from cDvbSpuDecoder::setTime() (thanks to Marco Schlüßler).
- Fixed a possible crash when loading an invalid XPM file (thanks to Martin Wache).
- Updated satellite names in 'sources.conf' (thanks to Thilo Wunderlich).
- Adapted 'libsi' to DVB-S2 (thanks to Marco Schlüßler).
- Fixed handling error status in cDvbTuner::GetFrontendStatus() (thanks to
  Reinhard Nissl).
- Shutdown handling has been rewritten (thanks to Udo Richter).
- Plugins can now implement the new function WakeupTime() to request VDR to wake
  up at a particular time (thanks to Udo Richter).
- The HUP signal now forces a restart of VDR (thanks to Udo Richter).
- cThread::EmergencyExit() has been replaced by ShutdownHandler.RequestEmergencyExit().
- Several references to "button" in a remote control context have been changed
  to "key" (based on a report from Marko Mäkelä regarding the "Menu button closes"
  text). The "MenuButtonCloses" parameter in 'setup.conf' has therefore been
  renamed to "MenuKeyCloses", accordingly. This will result in an "unknown config
  parameter: MenuButtonCloses" error message in the log file, so you may want to
  remove that entry from your 'setup.conf' file.
- Simplified the error handling in cDvbTuner::GetFrontendStatus() (based on a
  discussion with Reinhard Nissl).
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
- Increased the maximum number of DVB devices to 8 (thanks to Rolf Ahrenberg).
- The new Setup parameter "Channel entry timeout" can be used to customize the time
  since the last keypress until a numerically entered channel number is considered
  complete, and the channel is switched (suggested by Helmut Auer). Setting this
  parameter to 0 turns off the automatic channel switching, and the user will
  have to confirm the entry by pressing the "Ok" key.

- The CAM handling has been refactored. Instead of a cCiHandler per device there
  is now an abstract cCiAdapter and a cCamSlot. This allows each slot to be
  accessed individually.
- The general 15 seconds workaround time before opening the CAM menu has been
  removed. If the CAM menu doesn't open within a timeout, the enter menu command
  is now sent again.
- If a CAM is reset or pulled and reinserted, it now automatically starts
  decrypting the current channel again.
- The Setup/CAM menu now dynamically refreshes its items and displays whether
  a CAM is present or ready. The 'Reset' function no longer leaves the menu.
- The CAM menu will now be openend when pressing the Ok key on a slot entry.
- The CAM menu now stays within the current menu context and doesn't close and
  reopen the menu every time an option is selected.
- When an encrypted channel is switched to for the first time, VDR now checks
  explicitly whether a CAM can actually decrypt that channel. If there is more
  than one CAM in the system that claims to be able to decrypt the channel,
  they are all tried in turn.
  To make this possible, an encrypted channel needs to be received in Transfer
  Mode when it is switched to for the first time, so that VDR can determine
  whether the TS packets are actually decrypted. Once a channel is known to
  be decrypted by a particular CAM, the next time it is switched to it will
  be shown in normal live viewing mode.
- A cDevice now automatically detaches all cReceiver objects that receive PIDs
  that can't be decrypted with the current CAM. A plugin that attaches a cReceiver
  to a device should therefore watch the receiver's IsAttached() function to
  see if it is still attached to the device.
- The cReceiver constructor no longer takes an 'int Ca' as its first parameter,
  but rather a 'tChannelID ChannelID'. This is necessary for the device to be
  able to determine which CAM a particular channel can be decrypted with. If the
  channel is known to be unencrypted, or a plugin doesn't want to provide the
  channel id for other reasons, an invalid tChannelID() can be given.
- The cThread::Start() function now waits until a previous incarnation of this
  thread has actually stopped. Before this it could happen that a thread's
  Cancel(-1) function was called and immediately after that it was started again,
  but the Start() function still found it to be 'active'.
- The parameter NeedsDetachReceivers in cDevice::GetDevice(const cChannel *Channel, ...)
  has been removed. A call to this function will automatically detach all receivers
  from the device if it returns a non-NULL pointer.
- The cTimeMs class now accepts an initial timeout value in its constructor.
- A CAM is now explicitly instructed to stop decrypting when switching away from
  an encrypted channel.
- If the CAM in use can decrypt several channels at the same time, VDR can
  now make use if this capability. Whether or not a CAM can decrypt more
  than one channel is determined by sending it an initial empty QUERY command
  and testing whether it replies to it.
- Ca values in the range 0...F in channels.conf can still be used to assign a channel
  to a particular device, but this will no longer work with encrypted channels because
  without valid CA ids VDR can't decide which CAM slot to use. However, since VDR now
  automatically determines which CAM can decrypt which channel, setting fixed
  channel/device relations should no longer be necessary.
  IF AN ENCRYPTED CHANNEL CAN'T BE DECRYPTED AND YOU HAVE A CA VALUE IN THE RANGE
  0...F FOR THAT CHANNEL, SET IT TO 0 (FTA) AND TUNE TO THE CHANNEL AGAIN.