etlinefont-bower
Elegant Themes 100 Line Icons
A GPL-licensed icon font by Elegant Themes.
Packaged as a bower component by Paul Prince.
Upstream
AI/SVG/PNG Release
Font File Release
Licensing
The blog post / release announcement states that "As always, these icons are completely free to use, and have been released under the GPL."
They hyper-link the word "GPL" to it to GPLv3.