have to use different ports if multiple gb
instances/processes on same server.
Merge branch 'master' into diffbot
Merge branch 'diffbot' of github.com:gigablast/open-source-search-engine into diffbot
Merge branch 'diffbot' of github.com:gigablast/open-source-search-engine into diffbot
Merge branch 'diffbot' of github.com:gigablast/open-source-search-engine into diffbot
send notifications if no urls available
for immediate spidering.