Added .gitignore file
Added .gitignore file

Change-Id: If2b2a57e0c2b1502194506223ab42c15c7ef1dfc

seesaa/datetimepicker-android,zenyagami/DateTimepicker,keima/datetimepicker,xiaob/DateTimepicker,seesaa/datetimepicker-android,zenyagami/DateTimepicker,keima/datetimepicker