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/find.hpp

@@ -1,7 +1,6 @@
-#ifdef NALL_STRING_INTERNAL_HPP
+#pragma once
 
-namespace nall {
-namespace Markup {
+namespace nall { namespace Markup {
 
 auto ManagedNode::_evaluate(string query) const -> bool {
   if(!query) return true;
@@ -129,7 +128,4 @@ auto ManagedNode::_create(const string& path) -> Node {
   return _children.last();
 }
 
-}
-}
-
-#endif
+}}