Updated default settings in setup.php to contain more realistic data.
Deleted debug.production.template, this config file should not exist in production.
_getSettings() in setup.php now merges the default settings with those found in the override file (hms.settings).
Renamed _createConfigFiles to _seupConfigFiles as it can now delete files.
_createConfigFiles now gets the list of templates to look for from the settings, rather than maintaining it's own list.
_createConfigFiles will now delete any existing config files that do not have a matching template (e.g. debug.php will be deleted when running setup.php in production mode as there is only a debug.development.template and not a debug.production.template).
Closes #35