System Variables
================
- ndb_slave_conflict_role is now deprecated. The new alternative is
  ndb_applier_conflict_role. As both the variables are for same purpose,
  changing one variable will implicitly change the value of other variable.
Status Variables
================
- All NDBAPI replica counters of form Ndb_api_*_slave are now
  deprecated. And each of them can now be accessed through their
  respective alternatives : Ndb_api_*_replica.
- Ndb_slave_max_replicated_epoch is now deprecated and the alternative
  is Ndb_replica_max_replicated_epoch.
User Interface
==============
- The tab_copy_status and tab_update_status field enum values from the
  ndbinfo table_distribution_status table are updated as follows.
  ADD_TABLE_MASTER -> ADD_TABLE_COORDINATOR
  ADD_TABLE_SLAVE  -> ADD_TABLE_PARTICIPANT
- Couple of help texts and few log messages were also updated.

Change-Id: I5ff20a0e97c0fc81c97b131f7d579cc32b21b9d2