Write cluster to gexf file - server side
Merge remote-tracking branch 'origin/master' into export-import-graph
Export as GEXF file - Firefox only
Remove print stt
Remove logging error in IE
Do not use intermediary file for download
Add descriptions to nodes
Menu bar padding and border-bottom
Some code cleanup
Merge branch 'export-import-graph'
Merge branch 'master' into import-content-elements

Conflicts:
	app/controllers/Services.scala
	app/views/index.scala.html
Fix weird problem in variable declaration
Merge branch 'master' into import-content-elements

Conflicts:
	app/models/Cluster.scala