Merge pull request #62 from LExpress/php-5.6

Add support for PHP 5.6

Author: j0k3r

.travis.yml

@@ -4,6 +4,7 @@ php:
   - 5.3
   - 5.4
   - 5.5
+  - 5.6
 
 before_script:
   - sh -c 'if [ $(php -r "echo PHP_MINOR_VERSION;") -le 4 ]; then echo "extension = apc.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini; fi;'