#2 Fixes for various problems

[Anonymous]

This patch (applied to trunk) fixes following problems:
- file handle not closed (in function checkifextend in asylum.c)
- music starts always and not based on options (in functions init, getfiles in asylum.c)
- doublebuffering not handled correctly in chatscreen (in function escapehandler in menus.c)
- voices are not loaded when dumping music (in function load_voices in sound.c)
- memory leak when not using opengl (in function initialize_sprites in vdu.c)

[Anonymous]

patch - should be applied to trunk