merge fixes
when rebalancing wait for merge to complete before scanning
more
Merge branch 'diffbot' of github.com:gigablast/open-source-search-engine into diffbot
tight merge during rebalance to save
disk space, so neg recs annihilate pos recs.
tuning the rebalance loop
thread fixes. if pthread_create fails then
keep thread queue and just return. will try to
relaunch later. do not count delete keys towards
shard rebalance count.
fix a few minor bugs.
/master/->/admin/ and crawl type mismatch.
nothing
fix core