Merge pull request #846 from logoff/genericnetwork/circuitprovisioning

Add some model helpers and tests.
Update allocatedCircuitsMap in allocate() and deallocate() methods.
Merge branch 'ofertie/refactor' of git://github.com/dana-i2cat/opennaas into genericnetwork/circuitprovisioning
Rename actionset.
TopologyHelper.
Use TopologyHelper to obtain resources.