删除冲突文件
Merge branch 'master' of
ssh://git@github.com/minusone13/InvoicingSystem.git

Conflicts:
	BarginStrategyPO.txt
	CashPaymentPO.txt
	LevelStrategyPO.txt
	PaymentPO.txt
	PurBackSheetPO.txt
	PurSheetPO.txt
	ReachStrategyPO.txt
	ReceiptPO.txt
	SaleBackSheetPO.txt
	User.ser