add dummy* into gitignore
add dummy* into gitignore

dgross881/spree_alipay,RuanShan/spree_alipay,dgross881/spree_alipay,derekluo/spree_alipay,derekluo/spree_alipay,derekluo/spree_alipay,dgross881/spree_alipay,RuanShan/spree_alipay,RuanShan/spree_alipay