Changed to the PSSIF Model
Collapser works again
Views can be defined soon
Merge remote-tracking branch 'origin/attempt3' into attempt3

Conflicts:
	pssif/psiff.viz/src/main/java/graph/listener/ConfigWriterReader.java
	pssif/psiff.viz/src/main/java/gui/GraphView.java
	pssif/psiff.viz/src/main/java/gui/Main.java
	pssif/psiff.viz/src/main/java/gui/MatrixView.java
	pssif/psiff.viz/src/main/java/gui/graph/GraphVisualization.java
	pssif/psiff.viz/src/main/java/matrix/model/MatrixBuilder.java