loongson/pypi/: tornado versions

Because this project isn't in the mirror_whitelist, no releases from root/pypi are included.

Latest version on stage is: 6.1

Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.

Index Version Documentation
loongson/pypi 6.1
loongson/pypi 6.0.4
loongson/pypi 6.0.3
loongson/pypi 5.1.1
loongson/pypi 4.5.3
loongson/pypi 4.4.2
loongson/pypi 4.3