Eliminated most build errors (gcc,linux,wxGTK).

What is left is mostly:
 - warning: converting double to int
     -> add a cast/to_int or ignore
 - wrong initialization order in ctor
     -> just swap the order to match the class
 - errors about wxCursors
     -> add a function loadResourceCursor


git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@183 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/control/package_list.hpp

@@ -10,6 +10,7 @@
 // ----------------------------------------------------------------------------- : Includes
 
 #include <util/prec.hpp>
+#include <util/error.hpp>
 #include <gui/control/gallery_list.hpp>
 
 DECLARE_POINTER_TYPE(Packaged);