Different algorithm implementation. Body selector added.
Merge remote-tracking branch 'gyoroka/master'

Conflicts:
	hu.bme.mit.emf.incquery.visualization/src/hu/bme/mit/emf/incquery/visualization/contentgraph/ContentGraphModelContentProvider.java
	hu.bme.mit.emf.incquery.visualization/src/hu/bme/mit/emf/incquery/visualization/view/GraphView.java
	hu.bme.mit.emf.incquery.visualization/src/hu/bme/mit/emf/incquery/visualization/view/SugiyamaLayoutAlgorithm2.java
Extended dot format export added.
Renamed projects
Build configuration added