loongson/pypi: links for qtstuff

loongson/mirror QtStuff-0.4.zip
loongson/mirror QtStuff-0.4.win-amd64.exe
loongson/mirror QtStuff-0.3.zip
loongson/mirror QtStuff-0.3.win-amd64.exe
loongson/mirror QtStuff-0.2.win32.msi
loongson/mirror QtStuff-0.2.win-amd64.msi
loongson/mirror QtStuff-0.1.zip
loongson/mirror QtStuff-0.1.win-amd64.exe