Add BGPProperties validator as a JUnit test.

To use it, set BGP_PROPERTIES_PATH to your properties file,
remove @Ignore annotation in the test,
and run the test.

If the test fails, a surefire-report will be generated with information of the error.
Debugging may also help to finding where the error is.
Allow BGP properties validator application to get the path from the user.

The application can be used as a validator without need to recompile.
Merge pull request #702 from isartcanyameres/feature/bgp-properties-validator

Add BGPProperties validator as a JUnit test.
Implementation of DeallocateFlowAction in SDNNetwork internal driver.

http://jira.i2cat.net:8080/browse/OPENNAAS-1119
DeallocateOFFlow method in OFProvisioningNetworkCapability checks given flow exists before deallocating it, and removes it from sdnnetwork model after deallocation has taken place.

http://jira.i2cat.net:8080/browse/OPENNAAS-1118
Descriptions for newly created classes.
Merge pull request #699 from logoff/feature/ofertie-getflows

Getflows Floodlight REST client and action
Implement deallocateFlow method in the NCLController. OPENNAAS-1140.
Implement deallocate method in the NCL Provisioner. OPENNAAS-1139
Test for allocate and deallocate flow using ncl provisioner.
Merge pull request #703 from isartcanyameres/feature/sdnnet-deallocate-flow

Feature/sdnnet deallocate flow
Fix bug in deallocateFlow. Call NclController.deallocateFlow with params in correct order.
Merge pull request #704 from isartcanyameres/feature/ncl-deallocate

Feature/ncl deallocate
Initialize SDNNetworkModel internal fields in the default constructor.
Implement readAllocatedFlows in NCLProvisioner and NCLController.
Fix bug in flow creation. Correct flowName matching networkConnection id.
Log flow names being created and destroyed in OpenflowForwardingCapability
Merge pull request #705 from isartcanyameres/fix/ncl-errors

Fix/ncl errors
Merge pull request #706 from logoff/feature/ofertie-getflows

Remove OFFlow with new client
Unique CXF version set to 2.7.4 in root pom and features.