#428 bug fixed
#428 bug fixed

- bug fixed
 : There are no shift() method in DB object.

skywlrl/TodayWeather,WizardFactory/TodayWeather,pokers/TodayWeather,WizardFactory/TodayWeather,kimalec/TodayWeather,seankim2/TodayWeather,skywlrl/TodayWeather,skywlrl/TodayWeather,kimalec/TodayWeather,pokers/TodayWeather,pokers/TodayWeather,skywlrl/TodayWeather,seankim2/TodayWeather,seankim2/TodayWeather,WizardFactory/TodayWeather,seankim2/TodayWeather,pokers/TodayWeather,pokers/TodayWeather,seankim2/TodayWeather,WizardFactory/TodayWeather,WizardFactory/TodayWeather,kimalec/TodayWeather,kimalec/TodayWeather,seankim2/TodayWeather,skywlrl/TodayWeather,kimalec/TodayWeather