Complete issue #191
Complete issue #191

Check null equals for key and sourceDocumentId in QueryRow.Equals() method

couchbase/couchbase-lite-net,mpapp/couchbase-lite-net,JiboStore/couchbase-lite-net,brettharrisonzya/couchbase-lite-net,z000z/couchbase-lite-net,JiboStore/couchbase-lite-net,couchbase/couchbase-lite-net,couchbase/couchbase-lite-net,z000z/couchbase-lite-net,brettharrisonzya/couchbase-lite-net,mpapp/couchbase-lite-net