HBASE-12617 Running IntegrationTestBigLinkedList against cluster getting not an instance of org.apache.hadoop.hbase.MiniHBaseCluster
HBASE-12523 update checkstyle warnings to match our normal usage.
HBASE-12623 removes unused code to upgrade from pre-0.96 to 0.96.

Removes both insertion of namespaces and migration of zookeeper data to protobufs.
Add timeout on TestDefaultLoadBalancer#testBalancerCluster to see if we can stop it hanging as a zombie in precommit builds
HBASE-12624 Remove rename_snapshot.rb from code as there is no equivalent renameSnapshot api in Admin class (Ashish Singhi)
HBASE-12431 Use of getColumnLatestCell(byte[], int, int, byte[], int, int) is Not Thread Safe (Jingcheng Du)