* modules/mux/mpeg/pes.c: fixed to handle 0 pts/dts correctly.

* src/misc/mtime.c: fixed an overflow in mdate() on win32.
  This overflow was only affecting the hardware configurations where we can't use the performance counter and thus have to use GetTickCount().
  We now also check for the wrapping of the 32 bits value returned by GetTickCount() so mdate() doesn't wrap after 49.7 days.
* src/misc/win32_specific.c: call mdate() once in system_Init() so as to avoid thread safety issues while initialising the static variables used in mdate().

* added a lock when changing p_vout->p_last_osd_message

* added a the default CD Audio device in General Settings -> Input
* added OpenDialog::OnDiscPanelChange in wxwindows/open.cpp

* ALL: new main --video-on-top config option (in use by the x11/xvideo/osx/directx video outputs.)
* modules/video_output/x11/*: implemented support for "video on top". Will likely only work with KDE for now.

* modules/misc/dummy/*: new --dummy-save-es option to specify if we want the dummy
decoder to save the raw codec data to a file. This is disabled by default (while
it was always on before).
* src/input/es_out.c: bug fix for ES autoselection.

The last OSD message is now deleted before printing new one.

* modules/stream_out/transcode.c: added a floating point "scale" option for video transcoding. When specified, you don't need to specify the width and height of the output video.
 Also changed the width and height options so that if only one of them is specified, the other one is calculated automatically so as to keep the aspect ratio of the video.
* modules/mux/ogg.c: fixed crash when removing streams.
* modules/codec/theora.c: for now the theora encoder requires a width and height which are multiple of 16.

* add libcaca contrib

  goom sources currently located on my server.

All AddText( vout_thread_t *p_vout, char *psz_string, .. ) calls have as second argument char * now, just like the function definition in include/video_output.h. All uses already passed a char * to the AddText() functions.

- some cleanup
- reinstated automatic lowering of interface when play button was pressed.
- double click in playlist window play selected items.

* modules/codec/theora.c: bug fix with aspect ratio.

* modules/codec/theora.c: encoder now respects the aspect ratio.

* src/input/es_out.c: cosmetic changes.

* include/stream_output.h, src/stream_output/stream_output.c: added a SOUT_MUX_CAP_GET_ADD_STREAM_WAIT muxer capability to specify that a muxer prefers to wait all ES before starting muxing.
* modules/mux/ogg.c: use SOUT_MUX_CAP_GET_ADD_STREAM_WAIT.
* modules/stream_out/transcode.c: fix for video stream header generation (theora).
* modules/codec/theora.c: don't overwrite headers.

* include/vlc_block_helper.h: small bugfix to block_FindStartcodeFromOffset().
* modules/packetizer/mpegvideo.c: get aspect ratio for MPEG2 video streams (still needs to be done for MPEG1).
* modules/codec/libmpeg2.c: use p_dec->fmt_in.video.i_aspect if available.
* modules/stream_out/transcode.c, modules/codec/ffmpeg/encoder.c: respect aspect ratio during transcoding.

* include/vlc_block_helper.h: new block_FindStartcodeFromOffset() function.
* modules/packetizer/mpegvideo.c: rewrote the packetizer to use the block helper functions.

Removing last files of previous Familiar interface. Porting to Gtk+2 widget set of this interface is now finished. Policing and improving remains.

Fixed compiler waring about signed - unsigned comparision. It is always safer to use the same datatype when comparing values.