Drop 5.3.2 since symfony2 can not run against it anymore

.travis.yml

@@ -1,12 +1,11 @@
 language: php
 
 php: 
-  - 5.3.2
   - 5.3
   - 5.4
 
 before_script:
-  - wget -nc http://getcomposer.org/composer.phar
+  - curl -s http://getcomposer.org/installer | php
   - php composer.phar install
 
 script: phpunit -c tests/