- Fix a bunch of abuse of strncmp (memcmp rulez)

(This introduces a lot of warnings)

Somehow gettext fails on mingw32 here, so cannot test

src/Makefile.am: Only allow libvlc-control symbols that are prefixed by libvlc|mediacontrol. (Use to be symbol that contains libvlc or mediacontrol. This is a fix for Mac OS X and libtool.

automake could hardly keep up with 700 targets.

Don't scale when source or destination width/height is zero. Fixes a arithmic exception (division by zero).

Avoid mallocing/freeing a libvlc_exception_t (end).

Also demux YUV4MPEG2 files with the raw video demux. Bump the demux score so that it's tested before ffmpeg. ( http://wiki.multimedia.cx/index.php?title=YUV4MPEG2 )

Contribs:  build taglib on Windows. Don't know yet about the detection in main configure. (Ref #1247)

Patch from Mirsal, as often.

The idea is that "Ctrl + small letter" are now reserved to interface for
dialogs/windows showing.

=====
* Subtitles delay are now 'g','h' (g down, h up) instead of Ctrl+'h'|'j'
* Audio delay are now 'k', 'j' ( j down, k up ) in order to mimic
subtitles delay (g h j k are next to each other on most keyboards).

* loop is 'l' instead of shift+l to simplify and match random that is 'r'.

* audio and subtitles tracks are 'b' and 'v', instead of 'l', 'k', used
now for delay, since all delays are regrouped.

* Menus, title and chapter are now alt+  instead of Ctrl+ and are using
'n','p' for next/previous chapter and 'o','b' for other (title) next/previous
(o, b are next to n, p)

History is using alt+g, alt+h instead of ctrl+v , ctrl+b, (g & h are
next to each other)

Record is using now Ctrl+shift+r to mimic dump which is ctrl + shift +d.

Automatically load files with the following extension using the rawvid module (and set height, width, aspect ratio, chroma and fps correctly): sqcif, qcif, cif, 4cif, 16cif, yuv.

Add some sanity checks to the options' values.

vlc-config: fixed optimizations by splitting CFLAGS_OPTIM into CFLAGS_OPTIM_SIZE and CFLAGS_OPTIM_SPEED, and only one of which is used depending on value --enable-optimize-memory, moreover CFLAGS_NOOPTIM is set to -O0 rather than -O2 whenever possible