fixing the purchased stock test, user game test, and transaction test
testing
Merge branch 'master' of github.com:mikobautista/BattleStocks
resolved labeling typo
changed purchased stocks and transaction models/tests
Merge branch 'master' of github.com:mikobautista/BattleStocks
numericality validation in game test
added validations to usergame
Merge branch 'master' of github.com:mikobautista/BattleStocks