strdup() doesn't behave the same across platforms - fixes #4 https://github.com/gpac/gpac/issues/4
fix leak
misc cosmectics
XMLSubtitleSampleEntry must contain at least one namespace
Added XML extensions support (MPD and ContentProtection only)
Added MPD printing, moved segment URL resolution to MPD and fixed bug in dm_wget
explicit the balance attribute of 'smhd' box
Fixed bug in addon restart
Added SSL in win64 compil and fixed dash MPD seek bug
Fixed broken commit