Basic caching so that we won't request the same url twice
Merge branch 'master' of github.com:AndrewLane/hackathon2014lets-get-physical
Merge branch 'master' of github.com:AndrewLane/hackathon2014lets-get-physical
Merge branch 'master' of github.com:AndrewLane/hackathon2014lets-get-physical
Merge branch 'master' of github.com:AndrewLane/hackathon2014lets-get-physical
Fix the build