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

nall/string/markup/node.hpp

@@ -1,7 +1,6 @@
-#ifdef NALL_STRING_INTERNAL_HPP
+#pragma once
 
-namespace nall {
-namespace Markup {
+namespace nall { namespace Markup {
 
 struct Node;
 struct ManagedNode;
@@ -131,8 +130,7 @@ protected:
   SharedNode shared;
 };
 
-}
-}
+}}
 
 namespace nall {
 
@@ -141,5 +139,3 @@ inline range_t range(const Markup::Node& node) {
 }
 
 }
-
-#endif