Registering users now does not overwrite registered users list.
Updated registerUser unit-test
Simplified register users test
Moved storage.js
Refactoring services by extracting schema and domain-objects.
Refactoring storage.js
Refactoring
Refactoring
Refactoring of storage.js
Fixed small bug with GET users 404-ing, and removed stray 'debugger' statement.
Minor change to MongoJS call
Started adding Angular-UI-Router as bower dependency.