Fixed undo issue for combined editor;

Added keyword usage statistics

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@516 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/card.hpp

@@ -16,6 +16,7 @@
 
 class Game;
 class Dependency;
+class Keyword;
 DECLARE_POINTER_TYPE(Card);
 DECLARE_POINTER_TYPE(Field);
 DECLARE_POINTER_TYPE(Value);
@@ -50,6 +51,9 @@ class Card : public IntrusivePtrVirtualBase {
 	/// Styling information for a particular stylesheet
 	IndexMap<FieldP, ValueP>& extraDataFor(const StyleSheet& stylesheet) ;
 	
+	/// Keyword usage statistics
+	vector<pair<Value*,const Keyword*> > keyword_usage;
+	
 	/// Get the identification of this card, an identification is something like a name, title, etc.
 	/** May return "" */
 	String identification() const;