fix to do federated search over colls sequentially to
avoid OOM.
Merge branch 'testing' of github.com:gigablast/open-source-search-engine into testing
more fixes for federated search going OOM
fix so diffbot doesn't timeout due
to large floater/proxy backoff crawl delay.
append &timeout=MAXCRAWLDELAY to diffbot api url.
fix oops
reduce delay per banned proxy from 2s to 1s
make it 500 ms
fix json being messed up when doc was banned.
typo proxyAuth
emergency fixes for out of sockets core and
get proxy request timing out causing spider to hang bug.