Fixup datatype when we receive tap mutation
Fixup datatype when we receive tap mutation

Change-Id: Icd5c333b3939130ad8a51dcfbeae33b83344fe55
Reviewed-on: http://review.couchbase.org/36750
Reviewed-by: Michael Wiederhold <a17fed27eaa842282862ff7c1b9c8395a26ac320@couchbase.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

daverigby/memcached,cloudrain21/memcached-1,mrkwse/memcached,mrkwse/memcached,owendCB/memcached,daverigby/kv_engine,owendCB/memcached,mrkwse/memcached,owendCB/memcached,jimwwalker/memcached,jimwwalker/memcached,cloudrain21/memcached-1,couchbase/memcached,daverigby/memcached,daverigby/kv_engine,daverigby/memcached,couchbase/memcached,daverigby/kv_engine,daverigby/memcached,jimwwalker/memcached,owendCB/memcached,couchbase/memcached,cloudrain21/memcached-1,couchbase/memcached,mrkwse/memcached,cloudrain21/memcached-1,daverigby/kv_engine