SERVER-13635: pass whether an index is unique or not down through SortedDataInterface
SERVER-13635: better txn lines for replication sync
SERVER-15683: add command to introspect OperationContext and RecoveryUnit
SERVER-13635: make test handle oplogs of different engines
SERVER-13635: txn boundary for chunk migration getting disk locs
SERVER-13635: fix race in kv db catalog entry
SERVER-13635: add hook to RecoveryUnit for when we are take out of and put back into service