and rebuilding when switching details depth.

the same dir in order to weed out invalid files before calling
libmatroska. Fixes #1158 and a memleak in that area

found. Should save a few precious cycles

keyevent, rather than execute the last unassigned key action. Fixes an
issue that causes the playback to be unintenionally paused whenever a
modifier is pressed and the qt4 interface has focus (key-pause is not
assigned by default)

Qt4 - Preferences: Add an option and the code needed to start with the advanced preferences. 1337 function.

Qt4 - Preferences. Introduction of a checkBoxListItem struct to handle (key, value for CheckBoxes) in order to implement completely ModuleList autogeneration. Modify the functions needed to generate the correct String Configuration. Complete Preferences should be functionnal now.

- asx.c: added support for STARTTIME and DURATION tags, some cleanups. Unfortunately, i've noted that live555 RTSP user agent is having trouble with MS RTSP server, so these tags may never be of any use.

Qt4 - Preferences: Fix the help text behaviour from modules. Known also as the very-too-wide-resizing-and-very-too-big-letters.