Please add a license

[uimac]

This library seems to be great 👍 , but this repo is missing a license. Without a license, all code is copyright the author and may not be used by anyone else.

[JaapSuter]

Seconded, would love this to be open source in some non-GPL welll defined manner (e.g., MIT, Apache, etc.)

Then, of course, I'd love a free pony as well, ;)... So I won't assume this repo is even open source. In which case, having that explicitly specified would be great. Then I can look elsewhere.

Thanks!