Move utility 'request' function to 'utility' service.
Add workaround for an issue in cradle's 'forEach' function.
Load stock count from app server.
Delete 'couchdb' service as it is not used anymore.
Remove 'pouchdb' from dependencies.

It was only used in tests and because couch communication has been moved to the server, the tests should be updated to be done on the server using cradle/mock data.