Fixed a bug where only collections with the name 'relationName' could be created
Refactored tests to make them more dry
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel

Conflicts:
	js/common/modules/org/arangodb/general-graph.js
Renamed internal functionality to '_' and internal variables with equal names to '__'
Bound collections by name to graph object. graph.v === db.v
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel