Merge pull request #38 from sodalis/master

Ensure the correct HTTP command is used for index.create
Removed ruby-head from travis deps, too unreliable
Merge branch 'master' of github.com:PoseBiz/stretcher
Bump version to 1.15.0
update hashie
Don't hardcode version# in log specs
Merge pull request #40 from mulderp/update_hashie

update hashie