Renamed Bet model to Chipin
Merge branch 'master' of https://github.com/rmathew1992/compCharity into bet2chipin

Conflicts:
	db.sqlite3
delete empty [] user
Renamed Bet model to Chipin
delete empty [] user
added is_challenger field
Merge branch 'bet2chipin' of https://github.com/rmathew1992/compCharity into bet2chipin
Merge pull request #10 from rmathew1992/bet2chipin

Refactor Database Models