Reverted darwin/bundle/**/Credits.rtf to XFree86 versions to avoid
future conflicts on ASCII but not humal readable files. (There should
probably be separate CreditsXorg.rtf files) (Egbert Eich).
generating Alt_L, etc, fix the implementation so that you get Meta_L
for the left Meta key and Meta_R for the right Meta key. Ditto for Alt,
Control, and Shift.