icospin fonts are a subset of:
http://fontawesome.io/
http://ionicons.com/

License
both fonts are licensed under the MIT license
http://opensource.org/licenses/MIT

references:
https://icomoon.io/app/#/select
https://github.com/rastasheep/ionicons-sprite
https://github.com/rastasheep/ionicons-sprite/tree/master/svg