Fix Apple iSight on windows :D

When AudioSpecificConfig is available in fmt->i_extra, faad need the ADTS headers removed

StringListConfigControl finish -> deal with empty ppsz_list_text, same like in wx widgets, use instead the short text

This reverts commit 0a704407.

i'll use empty .gitignore files

Activate it with hotkey 'S' ('s' is stop)

Add ADTS headers on top of the raw AAC frames
Use the ADTS stream type (0x0f) since LOAS isn't implemented
    This was wrong since we were streaming raw, not LOAS/LATM

I think this is good default atleast on music.

Change button layout and behaviour in the open dialog. This avoid the Windows issue and should close #1455