Cap nhat
Merge branch 'master' of https://github.com/group4programminginterface/QuanLiBanDienThoai

Conflicts:
	QuanLiBanDienThoai.suo
	Theme/Home.Designer.cs
	Theme/Home.cs
	Theme/Home.resx
	Theme/Login.Designer.cs
	Theme/Login.cs
	Theme/bin/Debug/Theme.exe
	Theme/bin/Debug/Theme.pdb
	Theme/frmChiTietHoaDon.cs
	Theme/frmChiTietHoaDon.designer.cs
	Theme/frmHoaDon.Designer.cs
	Theme/frmHoaDon.cs
	Theme/obj/x86/Debug/DesignTimeResolveAssemblyReferences.cache
	Theme/obj/x86/Debug/DesignTimeResolveAssemblyReferencesInput.cache
	Theme/obj/x86/Debug/TempPE/reportHoaDonBanHang.cs.dll
	Theme/obj/x86/Debug/Theme.Home.resources
	Theme/obj/x86/Debug/Theme.csproj.FileListAbsolute.txt
	Theme/obj/x86/Debug/Theme.csproj.GenerateResource.Cache
	Theme/obj/x86/Debug/Theme.csprojResolveAssemblyReference.cache
	Theme/obj/x86/Debug/Theme.exe
	Theme/obj/x86/Debug/Theme.pdb
	Theme/reportHoaDonBanHang.rpt