System integration test had been moved from session-impl.

Change-Id: Icd54b578b556cd2db93752a6a7f18403c753d9a5

Conflicts:
	pom.xml
Merge branch 'develop' of git+ssh://github.com/cytoscape/cytoscape-gui-distribution into develop

Conflicts:
	pom.xml

Change-Id: Iffc8812bf844aa7dd27e3304542e4a42c1a4d8ce