Update to 20160106 OS X Preview for Developers release.

byuu says:

New update. Most of the work today went into eliminating hiro::Image
from all objects in all ports, replacing with nall::image. That took an
eternity.

Changelog:
- fixed crashing bug when loading games [thanks endrift!!]
- toggling "show status bar" option adjusts window geometry (not
  supposed to recenter the window, though)
- button sizes improved; icon-only button icons no longer being cut off

hiro/cocoa/window.cpp

@@ -337,7 +337,9 @@ auto pWindow::sizeEvent() -> void {
 
 auto pWindow::statusBarHeight() -> uint {
   if(auto& statusBar = state().statusBar) {
-    return pFont::size(statusBar->font(true), " ").height() + 6;
+    if(statusBar->visible()) {
+      return pFont::size(statusBar->font(true), " ").height() + 6;
+    }
   }
   return 0;
 }