Refactoring Settings code to simplify getting a setting when a simple setting name is requested.

Conflicts:
	nzedb/build/nZEDb.xml
	nzedb/db/Settings.php
Refactoring Settings code to simplify getting a setting when a simple setting name is requested.

Conflicts:
	nzedb/build/nZEDb.xml
	nzedb/db/Settings.php
Fixing Settings::getSetting to return value instead of array.