This reverts commit d83431e8.

Fix bug for ActionUtils.java

Missed a break statement in case SET_QUEUE, which caused an error when parsing SET_QUEUE;

Fix a bug for StatisticsCollector.java caused by a change of OpenFlow protocols

Added weighted RR and switch statistics algorithms for picking members

check openflow version before matching tcp_flags

Learningswitch OF Exception from InstructionApplyActions fixed

Update for "Fix bug for StatisticsCollector": 1) Change test name back to StatisticsTest.java. 2) update code to create OF factories on the fly

Update : Fix a bug for StatisticCollector.java causes by a change of OpenFlow protocols, with Parameterized JUnit test

Update : Fix a bug for StatisticCollector.java causes by a change of OpenFlow protocols, with Parameterized JUnit test

* Fixed a bug in the Topology Manager dealing with Archipelagos and clusters. Also fixed a few broken tests.

The bug in question came in two parts:
1) The way a Cluster hashcode was previously calculated meant that any cluster with an ID less than 2^32 was given a hashcode of 0. The Cluster hashCode function has been fixed.
and
2) Archipelagos were previously stored in a HashSet. This was a mistake as archipelagos are by currently mutable objects. This meant that if an archipelago was modified, its hashcode would be modified as well, making it impossible to retrieve the archipelago in question from the HashSet of archipelagos. To fix this problem, archipelagos are now stored in a List.

After adding checks for openflow version, there is no need to check the ovs version, so that other switches supporting openflow 1.5 can also use the tcp_flags. But we also leave the ovs checks to use the flags option while ovs>=2.1.0 but openflow<1.5.

tcp_flags are only supported after openflow 1.5 as seen at B.18.7 of openflow spec 1.5.0

Add CPAnalyzer module