Update Travis Config

* Explicitely test PHP 7.0 (instead of PHP nightly)
* Finish fast (give quicker feedback in PR)
* Remove Symfony 2.6 as it reached eom

Author: wouterj

.travis.yml

@@ -5,8 +5,8 @@ php:
   - 5.4
   - 5.5
   - 5.6
+  - 7.0
   - hhvm
-  - nightly
 
 sudo: false
 
@@ -19,22 +19,19 @@ env:
 
 matrix:
   include:
-    - php: 5.3
-      env: SYMFONY_VERSION=2.3.* COMPOSER_FLAGS="--prefer-lowest"
     - php: 5.6
       env: SYMFONY_VERSION=2.3.*
-    - php: 5.6
-      env: SYMFONY_VERSION=2.6.*
     - php: 5.6
       env: SYMFONY_VERSION=2.8.*
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*
+    - php: 5.3
+      env: SYMFONY_VERSION=2.3.* COMPOSER_FLAGS="--prefer-lowest"
   allow_failures:
-    - php: nightly
-    - php: 5.6
-      env: SYMFONY_VERSION=2.8.*
-    - php: 5.6
-      env: SYMFONY_VERSION=3.0.*
+    - php: 7.0
+    - env: SYMFONY_VERSION=2.8.*
+    - env: SYMFONY_VERSION=3.0.*
+  finish_fast: true
 
 # we install our own composer to set memory limit to illimited, because on php 5.3 the memory consumption is gigantic
 before_install: