bolt/bolt — pull request #1461 by GawainLynch (2014-08-08 09:49:09+00:00)
Title: Handle empty config.yml files in loadConfigFile()

Fixes the following error seen when running nut on a site naughty enough to have empty config.yml files for extensions:

`PHP Warning: array_merge(): Argument #2 is not an array in /var/www/sites/example.com/app/src/Bolt/BaseExtension.php on line 123`