Use glMapBufferRange by default.

It should provide better performance and in addition is
available in GLESv3.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36774 b3059339-0415-0410-9bf9-f77b7e298cf2
Fix bug with unicode font loading for font.desc files.

Unicode glyphs might not get loaded even if they are requested and
available.

Fix it by checking the font encoding rather than the subtitle encoding
when loading the font.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36775 b3059339-0415-0410-9bf9-f77b7e298cf2