Merge branch 'release/1.1.0' into develop
Merge branch 'hotfix/1.1.1' into develop
Merge branch 'hotfix/1.1.2' into develop
Merge branch 'hotfix/1.1.3' into develop
updated based on commit made to bootstrap sass. see [bootstap-sass issue #518](https://github.com/twbs/bootstrap-sass/issues/518)
updated changelog
added CONTRIBUTING documentation
updated changelog
updated assembly file
Merge branch 'release/1.1.4'