Makefile: make sure that libpng shared dll isn't installed to prevent VLC from linking against it (Cygwin only)

Run thread that reads from the DV camera at a slightly higher priority then the input. Put the --dv-caching value by default at a high value 60000 (1 min). Maybe it can be lower, but needs more testing.

configure.ac: generate a script to call extras/make.pl. I'm not a autoconf expert so i'm not sure if it's the "good" way to do it. but it works (tm)

* Remove the icns in share, nothing is using it.

(this is not the same ja.po as previous commit in 0.8.4 tag)

Makefile: tell wxwidgets not to use precompiled headers since it is broken under i686-pc-cygwin-gcc 3.4.4 

x264-svn-win32.patch: updated for x264 rev 375

   ratio. Fix a critical memory leak when closing the module.

   support.

   setting audio volume.

   the CAM error messages.

* extras/contrib/src/Makefile, extras/contrib/src/Patches/libogg-wince.patch,tremor.patch: added libogg and tremor support to wince contrib.

* extras/contrib/src/Makefile, extras/contrib/src/Patches/zlib.patch: added zlib to the wince contrib.

* modules/audio_output/directx.c: fixed the way we get the current latency in the driver. fixes the continuous resampling issues with s16l and might also fix the fl32 problems. This needs some heavy testing.