- put deinterlace in its own file.

Use p_block->i_dts as spu->i_start instead of p_block->i_pts. This fixes timing issues while transcoding and streaming Teletext subtitles as DVB subtitles.

- Fix potential memleak with SDT descriptors
- Fix compiler warning about unused variables when not using SDT descriptors
- Fix compiler warning about wrong type of psz_sdt_desc
- Add parenthesis

MacOSX/Framework/VLCLibrary.m: libvlc type briding should be in the (VLCLibVLCBridging) category. No need to compute the applicationPath by now.(Patch by Enrique Osuna).

MacOSX/Framework/VLCMedia.m: Re-enable libvlc_MediaDescriptorMetaChanged/libvlc_MediaDescriptorDurationChanged event listening. (Patch by Enrique Osuna).

include/vlc/libvlc.h: publish libvlc_media_instance_set_chapter, libvlc_media_instance_get_chapter, libvlc_media_instance_get_chapter_count, libvlc_audio_get_track_count.(Patch by Enrique Osuna).@

control/media_descriptor.c: Send a libvlc_MediaDescriptorFreed event, when the md is freed. (Patch by Enrique Osuna).

* added a version check of the current Mac OS X version, as we require 10.4.x or higher and will definitelly crash on earlier releases.

Supposed to be useful.

Qt4 - time left implementation. Do it better, faster, with also a middle click, and fix the double click toggling time left bug.

dbus: don't lock the playlist, but only yield the input to prevent its destruction while we are accessing it.
We do that because we can't lock the playlist when we're in the input "state" callback because we MAY have been called by playlist_Control(), which does lock the playlist, and then call us.
ref #1346