CLC-3509 Avoid uninitialized constant errors by renaming our Google module

https://jira.ets.berkeley.edu/jira/browse/CLC-3509

Our Google:: module conflicted with the Google:: module from the google_api_client gem. Renaming ours should fix the occasional problems seen in development mode. We've never seen this in production mode, I think because the threadsafe server preloads all classes and disables dynamic code loading. 

Please wait for green bamboo: https://bamboo.ets.berkeley.edu/bamboo/browse/MYB-CLCMVPCHRIS9-4/