Added sf 2.1 with PHP5.3

.travis.yml

@@ -14,6 +14,8 @@ matrix:
     - php: hhvm
     - env: SYMFONY_VERSION="dev-master" MIN_STABILITY="dev"
   include:
+    - php: 5.3
+      env: SYMFONY_VERSION=2.1.*
     - php: 5.5
       env: SYMFONY_VERSION=2.1.*
     - php: 5.5
@@ -28,9 +30,11 @@ matrix:
 before_script:
   - sh travis_before_build.sh
   - mkdir -p build/logs
+
 script:
   - phpunit --coverage-clover build/logs/clover.xml
-  - php vendor/bin/coveralls -v
+  - sh -c 'if [ "${TRAVIS_PHP_VERSION}" != "hhvm" ]; then php vendor/bin/coveralls -v; fi;'
+
 notifications:
   email:
     on_success: always