[SP] Cleanup/warning fixes for both SP games.
[SP] Fix extern.
[SP] More warning fixes to SP games.
[SP] A couple more warnings.
[MP][OSX] cgame,game,ui dylibs installed into .app
[SP][OSX] jagame installed into .app
[MP] app bundle now with localised name
[SP] app bundle now with localised name
[JK2SP] OSX .app bundle stuff
[JK2SP] Fixed third person weapons not showing
[JK2SP] galak got his face back

only the _off removal was strictly necessary to #ifdef, I wanted to be
safe though
[SP] Remove tr_image_manipulation.
[MP] Remove R_LoadDataImage, R_CreateAutomapImage.
[JK2SP] Another "_off" ghoul2 surface fix
[SP] Removed some RMG files
[MP] Removed some RMG files
[SP] Removed Rufl/random.*
Merge pull request #542 from BSzili/master

Removed some unused RMG-related files.
[JK2SP] Kill the [NoMaterial] stages in JK2 as well.  The message comes up sometimes otherwise trying to register missing [NoMaterial] shader.
Merge branch 'master' of https://github.com/JACoders/OpenJK