Made .travis.yml consistent

Author: wouterj

.travis.yml

@@ -6,14 +6,14 @@ php:
     - 5.5
 
 env:
-  - SYMFONY_VERSION=2.3.*
+  - SYMFONY_VERSION=2.4.*
 
 matrix:
   allow_failures:
     - env: SYMFONY_VERSION=dev-master
   include:
     - php: 5.5
-      env: SYMFONY_VERSION=2.2.*
+      env: SYMFONY_VERSION=2.3.*
     - php: 5.5
       env: SYMFONY_VERSION=dev-master