Only cleanup the stream on termination

Limelight/ViewControllers/StreamFrameViewController.m

@@ -105,6 +105,8 @@
 }
 
 - (void)willMoveToParentViewController:(UIViewController *)parent {
+    // Only cleanup when we're being destroyed
+    if (parent == nil) {
         [_controllerSupport cleanup];
         [UIApplication sharedApplication].idleTimerDisabled = NO;
         [_streamMan stopStream];
@@ -114,6 +116,7 @@
         }
         [[NSNotificationCenter defaultCenter] removeObserver:self];
     }
+}
 
 - (void) returnToMainFrame {
     [self.navigationController popToRootViewControllerAnimated:YES];