Updated project settings for Mac OS X.
Merge remote-tracking branch 'GitHub/master'
General revision of comments.
Several modifications to reflect Linux support and the availability of the Asylum teaser.
Added a sample Dagon.cfg file.
Updated the splash screen with 2012 year.
Just a cosmetic modification.
Yet another cosmetic modification to the Readme file.
Fixed link in the Readme file
Doh! Fixed link on the Readme… again.
Merge remote-tracking branch 'remotes/origin/master' into laenion

Merge with upstream to resolve merge conflict

Conflicts:
	Dagon/DGSystemUnix.cpp
Implement handling of function keys (F1..F12)