Management center default update interval has been decreased to 3 secs
Fixed and enhanced JoinStressTest.
Extracted MasterClaimOperation. Introduced MasterDiscoveryOperation to query master node.
Cleaned up and enhanced Tcp-Ip and multicast joins. Removed redundant/unused codes.
checkstyle fix
Merge pull request #3390 from emrahkocaman/master

Management center default update interval has been decreased to 3 secs
Cleaned up MergePolicyProvider. Fixed sonar issues.
Merge pull request #3392 from mdogan/fix/3.3/merge-policy

Cleaned up MergePolicyProvider. Fixed sonar issues.
Merge pull request #3393 from mdogan/fix/3.3/join-fix

Tcp-ip/multicast join cleanup and enhancements