initial commit
added data model
re-struct project folders and fix coding conventions
added tenants to API and configured the app to start using grunt
added status model
added apikey to user model
added initial data
added passport LocalAPIKeyStrategy authentication for API
updated deprecate method
added products controller
added inidexes
added classification groups route
added contracts routes
added Procfile
configured to use MONGOLAB
added init data for production
fixed Procfile
filter by class groups
added sort by contract or class group
added README