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/data/card.hpp

@@ -11,6 +11,8 @@
 
 #include <util/prec.hpp>
 #include <util/reflect.hpp>
+#include <util/error.hpp>
+#include <data/field.hpp> // for Card::value
 
 class Game;
 class Dependency;