loongson/pypi: links for webeditor

loongson/mirror webeditor-0.7.0.tar.gz
loongson/mirror webeditor-0.6.0.tar.gz
loongson/mirror webeditor-0.5.0.tar.gz
loongson/mirror webeditor-0.4.0.tar.gz
loongson/mirror webeditor-0.3.0.tar.gz