Add HHVM testing to travis

mikehaertl · mikehaertl · commit 5c76c2b4df71 · 2014-07-11T09:35:13.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,5 +3,6 @@ php:
   - "5.5"
   - "5.4"
   - "5.3"
+  - "hhvm"
 install:
   - composer install
