Re-introducing an app event for apps to do cleanup
Re-introducing an app event for apps to do cleanup

Until Appcelerator fixes app-events not being cleared on restart, apps needs to know when restart happens so they can clean up:

```
if (!ENV_PRODUCTION && Ti.Shadow) {
	Ti.App.addEventListener('tishadow:close', function() {
		Ti.App.removeEventListener('resumed', onResume);
	});
}
```
FokkeZB/TiShadow,emilyvon/TiShadow,titanium-forks/dbankier.TiShadow,Biotelligent/TiShadow,FokkeZB/TiShadow,r8o8s1e0/TiShadow,HazemKhaled/TiShadow,FokkeZB/TiShadow,emilyvon/TiShadow,r8o8s1e0/TiShadow,HazemKhaled/TiShadow,Biotelligent/TiShadow,titanium-forks/dbankier.TiShadow,r8o8s1e0/TiShadow,HazemKhaled/TiShadow,titanium-forks/dbankier.TiShadow,Biotelligent/TiShadow,emilyvon/TiShadow