Bump coffeescript from 2.5.1 to 2.6.1
Bump coffeescript from 2.5.1 to 2.6.1

Bumps [coffeescript](https://github.com/jashkenas/coffeescript) from 2.5.1 to 2.6.1.
- [Release notes](https://github.com/jashkenas/coffeescript/releases)
- [Commits](https://github.com/jashkenas/coffeescript/compare/2.5.1...2.6.1)

---
updated-dependencies:
- dependency-name: coffeescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
paulyoung/fontello-cli