Switches CitiBikeNYC job to use NYC-specific latlong.

A step towards multi-tenancy.

Add the following environment variables for NYC latlong:

NYC_LATITUDE: 40.740151
NYC_LONGITUDE: -73.9948
updates widget background colors given by Patrick and Michael
attempt to fix display in Production
another attempt to fix display in Production
yet another attempt to fix display in Production
yet another attempt to fix display in Production pt 2
fix Favicon location
Add Event header to the events widget.
[#65140880] Show times in other offices, on a rotating basis
Giving cloud foundry more memory.
using 2 instances on CloudFoundry

this makes the app more resilient
[#65377680] WIP: Alternate random non-new pivot with new pivot
[#65140880] Refactor and rename the new_faces widget.
Removing caching from faces_fetcher because it was breaking tests.
Changing binding the pivot faces scheduler to bind to the pivot_faces widget.
Adding a staging environment at pivotal-life-staging.cfapps.io. To push to staging cf push -m staging-manifest.yml.
Changing the start script to get environment variables from cf instead of heroku.
Moving over to using cf v6. Increasing app memory on staging instance.
Update the README with CF staging and production info
Reducing down to 1 instance to avoid flakiness of widgets when talking to external services.