Bug Fixes
- confusing when episode have multiple video files ([300](https://github.com/BGmi/BGmi/issues/300))
- **filter**: invalid regex won't disable global filter ([295](https://github.com/BGmi/BGmi/issues/295))
Code Refactoring
- remove deprecated `xunlei-lixian` ([288](https://github.com/BGmi/BGmi/issues/288))
- **downloader**: `check_deps` when switch download delegate ([291](https://github.com/BGmi/BGmi/issues/291))
BREAKING CHANGE
`xunlei-lixian` and its relative configurations will be removed.
Python 3.6 is removed.