1.6.0 Beta is here!

Thanks to @AnakinMac 's great work, we now have a new version of diumoo. In this version we introduced the following changes:

1. The core of diumoo has been rewritten by Swift
2. We now allow users outside Chinese mainland to keep their login status. No need to login again and again!
3. Fix a few of tiny bugs.

We changed the implementation of core so that the new version might be unstable. Thus we release a beta version first and invite everyone to try it and report issues you meet. Enjoy it!