removed billrivedao. Still trying to persist bill (see previous commit log for mroe info)
refactored billFactory to billService. updated refs in billCtrl, add a sample json file (to help with submiting dummy data)
cleanup in process
refactoring in progress. Setup a univService that aggregates all the current services (splitting them doesn't make sense anymore. I'm setting up so that we have just one user attr in univService and CRUD is performed on this instead).