supportinfo: use static IIDs as previous method wouldn't work in a multithreaded environment

* modules/codec/x264.c: H.264 level options patch by Ilkka Ollakka <ilkka dot ollakka a t oamk dot fi>. add options aud, sps-id. deprecate options analyse and filter for partitions and deblock.

* modules/demux/mpeg/mpga.c: oups, no need to free p_sys->p_block_in as it is freed by the packetizer.

- added missing video.toggleFullscreen() API

* Don't skip SPS/PPS after all. Apparently there is sometimes proper data behind such a NAL, which makes this break. Unfortunately there doesn't seem to be a way to properly skip data in the mp4 mux.

* modules/gui/wxwindows/menus.cpp: avoid using the C++ STL. This gets rid of weird crashes in the vector template.

* Improve the h264 rtp muxing even more. Should now be able to handle multiple h264 units in one block_t

+ temporarily re-enable vout-filter until video-filter is updated

I include this so that it can get some testing and debugging, but it has some issues:
* Several coding style / indentation problems that make the code quite hard to read
* Use of config_Get/config_Put instead of vars
* In my tests, it crashes as soon as bz-length is not == 0, which basically makes the attenuation effect inoperant

* src/misc/modules.c: only set b_force when we have b_strict.
* src/input/demux.c: add m4v and h264 extensions.