MB-9307: Abort compaction during rollback

Change-Id: I810a69d7625b59b4364e0786f6360bfb3c56c156
Reviewed-on: http://review.couchbase.org/30017
Reviewed-by: Volker Mische <volker.mische@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>