The value for naked domains is the appid and not the location

This means that if we change the constant ADMIN_LOCATION the update
scripts will automatically fix up correctly

Part of #119

migrations/20150212063755-settings-add-default-naked-domain.js

@@ -4,7 +4,7 @@ var type = dbm.dataType;
 var constants = require('../constants.js');
 
 exports.up = function(db, callback) {
-    db.runSql('INSERT settings (name, value) VALUES("naked_domain", ?)', [ constants.ADMIN_LOCATION ], callback);
+    db.runSql('INSERT settings (name, value) VALUES("naked_domain", ?)', [ constants.ADMIN_APPID ], callback);
 };
 
 exports.down = function(db, callback) {

src/test/database-test.js

@@ -822,7 +822,7 @@ describe('database', function () {
                 expect(error).to.be(null);
                 expect(result).to.be.an(Array);
                 expect(result.length).to.be(2);
-                expect(result[0]).to.eql({ name: 'naked_domain', value: constants.ADMIN_LOCATION });
+                expect(result[0]).to.eql({ name: 'naked_domain', value: constants.ADMIN_APPID });
                 expect(result[1]).to.eql({ name: 'somekey', value: 'somevalue' });
                 done();
             });