CYB-85 Move servics from app/models to app/services
CYB-85 Move servics from app/models to app/services.  Making API more consistent internally and with Rails standards.
CYB-85 spec cleanup for service renaming.
Merge pull request #25 from coyote/move_to_services_folder

Move to services folder
Hooked up Engagement Index with API; Also can query DB for Engagement Index Data
Merge pull request #27 from NolanChan/CYB-82-final

Hooked up Engagement Index with API