Merge branch 'release/0.9.0' into develop

* release/0.9.0:
  fixed readme
Merge branch 'hotfix/0.9.1' into develop

* hotfix/0.9.1:
  * Fixed minitest dependency
Merge branch 'hotfix/0.9.2' into develop

* hotfix/0.9.2:
  * Ruby 2.1.3
Improved readme
[ci skip]
* bootstrap-sass 3.3.0
* Open-ended dependencies on development gems
Merge branch 'release/1.0.0'

* release/1.0.0:
  * bootstrap-sass 3.3.0 * Open-ended dependencies on development gems
  Improved readme [ci skip]