Update dev requirements for sphinx documentation upload in pypi
Switch to 0.7.1
Fix unsupported type for timedelta in cli
Fix video_types in some providers
Add missing age implementation
Improve error logging
Fix None not being a valid language for embedded subtitles
Fix language extensions loading

The alpha2 converter might not yet be loaded at this point.
When subliminal's converters are loaded, they import subliminal
which import the video module.
Fix required language argument in cli
Use babelfish 0.2.0
Add login support for Addic7ed
Handle download limit in Addic7ed
Explicitly use utf-8 for subtitle files encoding
Catch enzyme and babelfish exceptions in scan_video
Require absolute paths in scan_video and scan_videos
Validate cache-file in cli
Use absolute paths in cli
Fix badly encoded subtitles
Fix embedded subtitles always being scanned
Fix subtitle language detection in api