Fix final multipart boundary when streaming 2i with max_results.
An error hunk in the 2i stream should terminate the multipart message.
Merge branch '1.4'
Make merge check for counters before performing merge
Add riak_kv_counter:sibling_value/2 to get value from a single sibling (for yz extractor)
Fixup merge check to actually compile
Merge branch 'lenary-count-from-sibling' into rz-yz-merge-1.4.0
merge lenary-count-from-sibling