Add tasks to remove duplicate data
Upgrade to cedar-14 stack
Remove error handling from GithubApi#create_team

This was introduced by 383c76a to fix an issue when caching against
GitHub, but that is no longer enabled.
Create method that creates statuses using GitHub API
Create pending and success status during build
Combine tests
Break up long lines
Remove unused variable
Use double quotes
Create helper for stubbing all GitHub status requests
Change wording of status message
Use keyword arguments instead of hash