osx: cleaned up frontend code

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2817 86ba831e-150c-0410-ab35-e06eaae15ed9
osx: updated hard-coded credits a bit.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2818 86ba831e-150c-0410-ab35-e06eaae15ed9