Force the injection of parser for 5.2 if it is not found
fix sample configuration
Update JGroups to 3.3.0.CR2
GMU:
 * bugfix: prepare was not sent to the read-only nodes in the write transaction
 * improve: check for pending transaction done after replying to the transaction coordinator
 * Speculative commit with one more stat.
 * Verbosity still to be reduced
 * Fixing NPE in RpcManagerWrapper