Patching to compile on OSX10.10

A quick&dirty patch as per Homebrew/legacy-homebrew#29837

Author: eugene1g

src/qt/qtbase/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm

@@ -124,7 +124,8 @@ - (void)dealloc
     [dockMenu release];
     [qtMenuLoader release];
     if (reflectionDelegate) {
-        [NSApp setDelegate:reflectionDelegate];
+        //[NSApp setDelegate:reflectionDelegate];
+        [[NSApplication sharedApplication] setDelegate:reflectionDelegate];
         [reflectionDelegate release];
     }
     [[NSNotificationCenter defaultCenter] removeObserver:self];