file chooser and file path
Core.properties
Merge branch 'master' of
https://github.com/brugr9/ch.bfh.bti7301.hs2013.GraphVisualisierung2

Conflicts:
	GraphVisualisierung2/src/ch/bfh/bti7301/hs2013/gravis/old/OldApplicationFactory.java
graphs needed under sourcepath
Merge branch 'master'
Conflicts:
	GraphVisualisierung2/src/ch/bfh/bti7301/hs2013/gravis/core/graph/GraphManager.java