fix iOS screen rotation with keyboard

PanoPainter/GameViewController.m

@@ -227,7 +227,7 @@ std::recursive_mutex lock_mutex;
 {
     App::I->redraw = true;
     App::I->animate = false;
-    [self unregisterForKeyboardNotifications];
+    //[self unregisterForKeyboardNotifications];
 }
 
 // Called when the UIKeyboardDidShowNotification is sent.
@@ -237,7 +237,8 @@ std::recursive_mutex lock_mutex;
     CGSize kbSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;
     
     GameView *view = (GameView *)self.view;
-    CGRect frame = view.frame;
+    //CGRect frame = view.frame;
+    CGRect frame = [[UIScreen mainScreen] bounds];
     frame.size.height -= kbSize.height;
     view.frame = frame;
 
@@ -409,7 +410,7 @@ std::set<UITouch*> ignored_touch;
 {
     App::I->redraw = true;
     [self resignFirstResponder];
-    //[self registerForKeyboardNotifications];
+    [self registerForKeyboardNotifications];
 }
 
 - (void)viewDidLoad