Added memcached and redis extension

Author: Nyholm

.travis.yml

@@ -4,6 +4,10 @@ php:
   - "5.6"
   - "5.5"
 
+services:
+  - memcached
+  - redis-server
+
 env:
   - SYMFONY_VERSION=2.6.*
   - SYMFONY_VERSION=2.7.*
@@ -16,6 +20,7 @@ matrix:
 sudo: false
 
 before_script:
+    - echo "extension = memcached.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
     - composer self-update
     - composer require symfony/symfony:${SYMFONY_VERSION} --no-update
     - composer install --dev --prefer-dist --no-interaction