Changes to make it work in windows again;

New header util/platform.hpp for platform specific stuff that doesn't go elsewhere;
Changed resource names from "CURSOR_SOMETHING" to "cursor/something", so it matches the filenames (in progress for other resource types).

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@190 0fc631ac-6414-0410-93d0-97cfa31319b6

src/script/image.cpp

@@ -8,6 +8,7 @@
 
 #include <script/image.hpp>
 #include <script/context.hpp>
+#include <script/to_value.hpp>
 #include <util/dynamic_arg.hpp>
 #include <util/io/package.hpp>
 // for functions: