[TIMOB-5346] Kitchensink: iOS 5: Base UI>Window events, Red screen with Unrecognized selector is displayed

Description: While testing KS 172 on iOS 5, Base UI>Window events,Launching the test presented a red screen as show in the attached image. The console logged the following: Sep 21 16:00:15 unknown UIKitApplication:com.appcelerator.titanium[0xab8c][146] : [DEBUG] loading: /var/mobile/Applications/E4112D1A-E207-40CE-A212-07A3848353D3/KitchenSink.app/examples/window_events.js, resource: examples/window_events_js Sep 21 16:00:15 unknown KitchenSink[146] : -[NSNull setParent:]: unrecognized selector sent to instance 0x3e9cb5c0 Sep 21 16:00:15 unknown UIKitApplication:com.appcelerator.titanium[0xab8c][146] : [ERROR] Script Error = -[NSNull setParent:]: unrecognized selector sent to instance 0x3e9cb5c0 at window_events.js (line 10). Steps to Reproduce: 1) Install KS with SDK 1.7.2 onto iOS 5 device 2) Navigate to Base UI>Window events and launch test Results: Red screen with error as shown in attached image Expected results: No red screen, test runs without fault Note: Does not occur with iOS 4.3x Does not occur with SDK 1.8.0.v20110922105247