Merge tag 'v1.1.2' into develop

v1.1.2
Update elections.json

Updating supported elections
Fix error in TravisCI caused by Homebrew

Homebrew was throwing an error due to xctool having already been installed. Having Homebrew remove xctool and reinstall.
Merge pull request #136 from votinginfoproject/develop

Updated Supported Elections and fix the error being thrown in TravisCI by Homebrew.