Modify model in openflowswitch.
Modify model in floodlight bundle.
Modify OFFlow model in genericnetwork bundle.
Floodlight transaltes its model into the Capability one.

Fix tests.
Implementation of GetOFForwardingAction for ryu
Implementation of RemoveOFForwardingAction  for ryu.
Implementation of createOFForwardingRule for Ryu.
Improve code repetition in tests and finish CreateForwardingRule action.
Modify serializer with openflow1.0-1.4 compatible tags.
Actionset Implementation including new actions.
Openflow Switch Repository can not depend on driver specific information.
OFFlow namespace.
Modify actions to take into account Ryu does not contain flow ids.
Use FloodlightOFFlow in floodlight driver - it was deleted by mistake.
Merge pull request #970 from adrian-rosello/ryu

Ryu actionset implementation for offwarding capability