Update php version

Author: rtfpessoa

circle.yml

@@ -1,19 +1,13 @@
 machine:
   php:
-    version: 5.3.10
-    
+    version: 5.6.17
+
 dependencies:
   pre:
     - curl -s http://getcomposer.org/installer | php
     - php composer.phar install -n
-    - sed -i 's/^;//' ~/.phpenv/versions/$(phpenv global)/etc/conf.d/xdebug.ini
-    
+
 test:
   post:
     - php vendor/bin/phpunit
-
-deployment:
-  coverage:
-    branch: master
-    commands:
-      - php bin/codacycoverage clover
+    - php bin/codacycoverage clover