updated fontawesome version (#174)

Wataru Mizukami

26.25.2019 ee65eab9fa3ae2cc36ae1bc0a85a9d6228dd3d43

 CONTRIBUTORS.md

@@ -35,3 +35,4 @@
- [Thomas Vochten](https://github.com/thomasvochten)
- [Caspar Krieger](https://www.asparck.com)
- [D_DAndrew](https://d-dandrew.github.io)
- [Wataru Mizukami](https://github.com/tarumzu)