add serverside endpoint and db model for splitcheckRoom
set up database for splitcheck, use sync updates structure to send sockets
add to bill sends socket to all in room
delete item works with sockets
refactor splitcheck, still need to work out how to calculate what one individual owes
splitbill calculates a running total on the fly as you check items to add to your personal bill
fix splitcheck bugs, clean up controller and service
Merge pull request #30 from slrubinstein/fix-split-check

Fix split check
cleaned up roomCreationService
resolved merge conflict
resolved merge conflict
changed roomCreationService.create to two methods, and using promise object returned by .post