We are always looking for the quality contributions and will be happy to accept your Pull Requests as long as those adhere to some basic rules: * Please make sure that your contribution fits well in the project's context: * we are aiming at rebuilding boostrap directives in pure AngularJS, without any dependencies on any external JavaScript library; * the only dependency should be boostrap CSS and its markup structure; * directives should be html-agnostic as much as possible which in practice means: * templates should be referred to using the `templateUrl` property * it should be easy to change a default template to a custom one * directives shouldn't manipulate DOM structure directly (when possible) * Please assure that you are submitting quality code, specifically make sure that: * your directive has accompanying tests and all the tests are passing; don't hesitate to contact us (angular-ui@googlegroups.com) if you ned any help with unit testing * your PR doesn't break the build; check the Travis-CI build status after opening a PR and push corrective commits if anything goes wrong