increase the waiting time for backup activation in case of replication mode.
taking care of File.list() returning null
Let cluster manager starts after remoting service. Fix test.
Update documentation related to message counters
Update doc and schema for cluster
Merge pull request #994 from jbertram/master

Doc updates
Merge pull request #995 from clebertsuconic/master-fix

Queue optimization
Merge pull request #991 from gaohoward/master

increase the waiting time for backup activation in case of replication mode. taking care of File.list() returning null
https://bugzilla.redhat.com/show_bug.cgi?id=915760 removing trace call as requested on this BZ