Merge branch 'release/2.3.1.1' into develop

* release/2.3.1.1:
  Bump version to 2.3.1.1
Add background color to breadcrumbs
Merge pull request #46 from silvenon/develop

Add background color to breadcrumbs
Bump Rails 4.0 test dependencies
Bump version to 2.3.1.2
Merge branch 'release/2.3.1.2'

* release/2.3.1.2:
  Bump version to 2.3.1.2
  Bump Rails 4.0 test dependencies
  Add background color to breadcrumbs