GetCustomer by key will now bind the user info also
pooling all users into GetCustomer object
Merge branch 'master' of https://github.com/curt-labs/GoAPI

* 'master' of https://github.com/curt-labs/GoAPI:
  adds a second vin lookup - two-trip: get vehicles, then get parts
  omits no-part vehicles (e.g. base, non-config); cleans comments
  Adds part details to vin lookup:
  Revises vin lookup; returns vehicle array, each with unique config and any matching parts
  undo that last code change
  adds env variable reading for redis cache prefix
  Cleans up customer/content; gets revisions with content