Allow self-update to fail as PHP 5.3.3 doesn't have OpenSSL

Author: wouterj

.travis.yml

@@ -32,8 +32,10 @@ matrix:
     - php: 5.6
       env: SYMFONY_VERSION=3.0.*
 
-before_script:
-  - composer self-update
+before_install:
+  - composer self-update || true
+  
+install:
   - composer require symfony/symfony:${SYMFONY_VERSION} --no-update
   - composer update --prefer-source $COMPOSER_FLAGS