.travis.yml in rack-jquery-1.3.2 vs .travis.yml in rack-jquery-1.4.0

@@ -1,10 +1,9 @@
 language: ruby
 rvm:
   - 1.9.2
   - 1.9.3
   - 2.0.0
-  - ruby-head
 
 # whitelist
 branches:
   only:
     - master