Use latest versions

Author: wouterj

.travis.yml

@@ -6,6 +6,7 @@ php:
     - 5.5
     - 5.6
     - hhvm
+    - nightly
 
 sudo: false
 
@@ -14,7 +15,7 @@ cache:
         - $HOME/.composer/cache
 
 env:
-  - SYMFONY_VERSION=2.6.*
+  - SYMFONY_VERSION=2.7.*
 
 matrix:
   include:
@@ -23,12 +24,15 @@ matrix:
     - php: 5.6
       env: SYMFONY_VERSION=2.3.*
     - php: 5.6
-      env: SYMFONY_VERSION=2.5.*
+      env: SYMFONY_VERSION=2.6.*
     - php: 5.6
-      env: SYMFONY_VERSION=2.7.*
+      env: SYMFONY_VERSION=2.8.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*
   allow_failures:
+    - php: nightly
+    - php: 5.6
+      env: SYMFONY_VERSION=2.8.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*