Autoupdate coveralls

Author: mabar

.travis.yml

@@ -42,8 +42,8 @@ jobs:
       script:
         - composer run-script coverage
       after_script:
-        - wget https://github.com/php-coveralls/php-coveralls/releases/download/v2.1.0/php-coveralls.phar
-        - php php-coveralls.phar --verbose --config tests/.coveralls.yml
+        - composer global require php-coveralls/php-coveralls ^2.1.0
+        - ~/.composer/vendor/bin/php-coveralls --verbose --config tests/.coveralls.yml
 
     - stage: Outdated Dependencies
       if: branch = master AND type = cron