CLC-4492 - Added XML Config for Official Sections LTI Tool
CLC-4492 - Configured boilerplate AngularJS controller/template for Manage Official Sections LTI app
CLC-4492 - Added Manage Official Sections LTI tool to External Tools refresh configuration
CLC-4492 - Add some style so that SCSS-Lint doesn't cause Travis to fail
Merge pull request #3140 from redconfetti/CLC-4492-config-official-sections-lti

CLC-4492 - Official Sections: Configure New LTI Tool