Fix PSX spectre translucency level
C++ style and typo fixes only
Add Arch distro BFG Edition to search path

chungy says it is kept in /usr/share/games/doom3bfg
Use opendir to find nerve.wad

Resolves issues with system filename case sensitivity by using the name
as it appears in the directory listing.
Remove unneeded qstring construction
COmmitted something
Merge branch 'master' into AutoDoom