gem/oq-engine — pull request #1408 by daniviga (2014-04-09 15:47:20+00:00)
Title: Add support in the engine for a local_settings.py

In the CentOS port I need to set a custom ```GEOS_LIBRARY_PATH``` in ```openquake/engine/settings.py``` but I would prefer to don't touch that versioned file and I want to use the local_settings.py instead. This PR add the support for adding a ```local_settings.py``` file.