ISPN-4631 Add explicit check that cluster was formed

* Added check that cluster has 2 members
* Adjust initial number of nodes to avoid delays
* Renamed jgroups config files to "tcp" as transport was switched to TCP
ISPN-4763 New status for when Hot Rod operations return previous value
Changed RemoteStore to use default protocol (2.0)
Do not trim the James mime4j module as it is needed by resteasy
ISPN-4710 Avoid checking for FileReadLockKey presence when the segment file is non-chunked
ISPN-4805 Raise the default chunk size for the Lucene Directory to 1MB
ISPN-4756 Upgrade to protobuf-2.6.0 and protostream-2.0.0.Alpha3
ISPN-4357 Use a specific cache for managing protofiles