Merge pull request #22 from druid-io/igalSite

Igal site
Merge pull request #23 from druid-io/igalSite

Igal site
new docs
Merge branch 'master' of github.com:druid-io/druid-io.github.io
druid benchmarking blog post
 new version yo
Merge branch 'master' of github.com:druid-io/druid-io.github.io
add datasource doc
fix typos
update date
publish blog post
update version
Merge branch 'master' of github.com:druid-io/druid-io.github.io
update
new ver
hyperloglog optimizations blog post
draft blog on pydruid