start periodic tasks after rebuilding indexes and starting replication
SERVER-16205 initialize KV in the constructor, rather than in _finishInit
SERVER-16234 clear oplog before starting initial sync
SERVER-16244 do not compare pointer addresses
SERVER-16217 improve replSetReconfig and replSetInitiate error messages
SERVER-16204 rocks storage engine should handle nested recovery units

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>
Revert "SERVER-16217 improve replSetReconfig and replSetInitiate error messages"

This reverts commit 74cd9523a6b9d81dc60bdf6af05f6fa2e8739159.
Merge remote-tracking branch 'upstream/master'