Fixed layout bug in graph layout
Almost finished with documentsView.css however still some stuff to cleanup left. System is at least in a stable state. Layout of buttons in headerbar has slightly changed (they were off by 1px)
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel

Conflicts:
	js/apps/system/aardvark/frontend/scss/generated.css