Update elasticsearch to 0.90.0
Add file header to comply with Apache licence guidelines
Added reduce_params map to configure reduce
Simplify script parameters tests
Update elasticsearch to 0.90.2
Release v1.1.1
Move to v1.1.2-SNAPSHOT
Fix typos in README.textile
Fix issue with reduce parameter serialization
Update elasticsearch to 0.90.3
Release v1.1.2
Move to v1.1.3-SNAPSHOT
Merge remote-tracking branch 'upstream/master' into sg_upstream_upgrade