* ALL: removed useless add_category_hint().

string review: Merge/canonicalize debug string messages.

* ALL: removed a bunch of unused add_category_hint().

 its own colormap, but I don't like that at all...

* modules/gui/gtk/preferences.c: don't rely on module definitions having an add_category_hint().

still some  printfs in dvbsub.c. Would  need to spend some  time reading
the code to remove them.

* modules/gui/wxwindows/interface.cpp: removed unused strings.

* Removed trailing spaces

sorry :)

* mozilla/vlcshell.cpp: don't translate debug messages.
* modules/misc/logger/logger.c: compilation fix.

If you've got spare stuff to review, I'm free.
(FK, are you reviewing the KDE intf or shall I do it?)

(but as I'm too tired and it's apero time, round three
will follow later on in the night)

* modules/access/*: strings review + coding style fixes.

* A few coding style fixes
* Doxygenized a few functions

 * correctly name the config options( logo-foo not logo_foo )

* modules/stream_out/*: coding style changes + strings review.

to vlc's plugin. A couple of typographical mistakes corrected.

* modules/mux/mp4.c: spec compliance fix.

* src/libvlc.c: another couple of changes to the --help output.

* src/window_manager.cpp: improved the raise window algorithm
* src/tooltip.cpp: fixed a segfault after changing a theme

* src/libvlc.c: improved --help output.

* modules/video_filter/logo.c: compilation fixes.