SoftwareUpdater fixes and network status check

Bug fix- use a proper sized 32 pixel application icon for notifications
Bug fix- sorting list of packages to install and uninstall added
Removed use of FinalWindow class now that resizing issues are resolved
Diaplsy alert if no network connections are found at application start

src/apps/softwareupdater/UpdateAction.cpp

@@ -42,6 +42,8 @@ status_t
 UpdateAction::Perform()
 {
 	try {
+		fUpdateManager->CheckNetworkConnection();
+		
 		fUpdateManager->Init(BPackageManager::B_ADD_INSTALLED_REPOSITORIES
 			| BPackageManager::B_ADD_REMOTE_REPOSITORIES
 			| BPackageManager::B_REFRESH_REPOSITORIES);
@@ -61,10 +63,6 @@ UpdateAction::Perform()
 		fprintf(stderr, "Updates aborted by user: %s\n",
 			ex.Message().String());
 		// No need for a final message since user initiated cancel request
-		// Note: activate FinalUpdate() call for testing final message window
-		//fUpdateManager->FinalUpdate(B_TRANSLATE("Updates cancelled"),
-		//	B_TRANSLATE("No packages have been updated."));
-		// Note: comment out when testing final message window
 		be_app->PostMessage(kMsgFinalQuit);
 		return B_OK;
 	} catch (BNothingToDoException ex) {