Merge pull request #209 from QBall147/master

Added -exportents to q3map2 (exports entities to a .ent file)
Fix STVEF game support install routine
Merge pull request #210 from UberGames/STVEFBugFix1

Fixed STVEF game support install routine + structural/detail toggle
Merge pull request #211 from QBall147/master

Get rid of the rest of those gtk deprecated warnings for gtk-spin-button, also added 'Always caulk a new brush' to preferences