sources added

git-svn-id: https://projecthost.cs.technik.fhnw.ch/stud/ip_3bb13_puzzligenerator/svn/trunk@11 5a5f8b1a-b5cb-41ca-84ef-24cc03a2aca4
Merge branch 'master' of https://github.com/Garbanas/ip-3bb13-puzzligenerator
changed file extension to lowercase