Merge pull request #40 from dvicini/master

commenting for social classes...
Merge pull request #41 from dvicini/master

restructures packages a bit
Merge pull request #42 from dvicini/master

missing files..
Merge pull request #43 from dvicini/master

cleaned up the static boolean mess in home fragment...
cleaned up database handlers and fixed model creation bugs
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2013-team6