Use valid uids for testing
Add test for acting as invalid uid
CLC-4256 Run load tets with both empty and primed cache
CLC-4306 - Update gems - simplecov

https://jira.ets.berkeley.edu/jira/browse/CLC-4306
https://github.com/colszowka/simplecov/compare/v0.9.0...v0.9.1
Merge pull request #2992 from christianv/CLC-4306

CLC-4306 - Update gems - simplecov
Merge pull request #2991 from ctweney/clc-4256

CLC-4256 Run load tests with both empty and primed cache
CLC-4311 - Gem Updates - rails-perftest

https://github.com/rails/rails-perftest/compare/v0.0.4...v0.0.5
https://jira.ets.berkeley.edu/jira/browse/CLC-4311
CLC-4311 - Gem Updates - livereload

https://github.com/guard/guard-livereload/compare/v2.3.0...v2.3.1
https://jira.ets.berkeley.edu/jira/browse/CLC-4311
Merge pull request #2990 from raydavis/raywip

CLC-4057 Perform health check on background job processing
Use implicit return
Merge pull request #2977 from edwlook/CLC-4229-1

CLC-4229-1 - /act_as endpoint should only allow uid's that are valid
CLC-4298 - Added Canvas::CourseAddUser.granting_roles method which returns roles which users may grant to other users
CLC-4298 - Added support to CanvasCourseAddUserController#course_user_roles to return grantingRoles defining roles which the user may grant to others
CLC-4298 - Moved  calls from AngularJS controller to canvasCourseAddUserFactory.js
CLC-4298 - Updated 'Find a Person to Add' tool to use authorized user roles array
CLC-4298 - Added authorization check for role specified in user enrollment request
CLC-4298 - Updated specs to use new format for stubbing
Merge pull request #2993 from christianv/CLC-4311

CLC-4311 - Gem Updates - livereload / rails-perftest
Merge pull request #2994 from redconfetti/CLC-4298-ta-security-fix

CLC-4298 - TA role can add a Teacher using "Find a Person to Add"
CLC-4057 Add temporary logging to BackgroundJobsCheck