Add support for .avi video format

[wiedymi]

Add support for .avi video format

[Vanilagy]

Maybe someday, but low priority. AVI is a very old and obsolete format. What do you need it for?

[wiedymi]

I want to watch the video on web, old anime

[wiedymi]

#141

[jkukul]

@wiedymi I think you meant to link your Pull Request (which addresses this issue):

#155