added Travis CI testing of all UFO source commits/PR with ufolint

.travis.yml

@@ -0,0 +1,15 @@
+sudo: false
+language: python
+
+env:
+  - VARIANT=source/Hack-Regular.ufo
+  - VARIANT=source/Hack-Bold.ufo
+  - VARIANT=source/Hack-Italic.ufo
+  - VARIANT=source/Hack-BoldItalic.ufo
+
+before_script: pip install ufolint
+
+script: "ufolint $VARIANT"
+
+notifications:
+  email: false

README.md

@@ -1,5 +1,7 @@
 
-# Hack  [![Contributors](https://img.shields.io/badge/contributors-104-orange.svg?style=flat)](https://github.com/chrissimpkins/Hack/blob/master/docs/CONTRIBUTORS.md)
+# Hack
+
+[![Build Status](https://travis-ci.org/source-foundry/Hack.svg?branch=master)](https://travis-ci.org/source-foundry/Hack) [![Contributors](https://img.shields.io/badge/contributors-104-orange.svg?style=flat)](https://github.com/chrissimpkins/Hack/blob/master/docs/CONTRIBUTORS.md)
 
 ### A typeface designed for source code