.travis.yml in rosemary-0.4.1 vs .travis.yml in rosemary-0.4.2

@@ -1,5 +1,9 @@
 language: ruby
+
+before_install:
+  - sudo apt-get install libxml2-dev
+
 rvm:
   - 1.9.3
   - 2.0.0
   - 2.1.0
 notifications: