Minor - wait that composer finishes

.travis.yml

@@ -80,7 +80,7 @@ before_install:
   - cd $TRAVIS_BUILD_DIR
   - pwd
   # Install vendors
-  - composer install
+  - travis_wait 30 composer install
   # Install chamilo
   - php -d date.timezone="Europe/Paris" $TRAVIS_BUILD_DIR/chash/chash.php chash:chamilo_install $CHAMILO_VERSION $TRAVIS_BUILD_DIR --no-interaction --sitename="Chamilo" --site_url="http://$VHOST_URL/" --institution="Chamilo" --institution_url="https://chamilo.org" --encrypt_method="sha1" --firstname="John" --lastname="Doe" --language="english" --driver="pdo_mysql" --host="localhost" --port="3306" --dbname="chamilo" --dbuser="root" --permissions_for_new_directories="0777" --permissions_for_new_files="0666" --linux-user="www-data" --linux-group="www-data" --username="admin" --password="admin" --email="admin@example.com" --phone="555-5555"
   - sudo chmod -R 777 app/cache app/logs app/courses app/upload