Changed the way the FilteredCardList on the stats panel selects cards:

used to: by running scripts on cards and comparing to string value of selected group
  now:     by keeping a list of group_ids for all cards, and comparing indices
Added 'bin size' attribute for making a histogram of numeric axes.
Added 'Text length' statistic.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1071 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/statistics.cpp

@@ -23,6 +23,7 @@ StatsDimension::StatsDimension()
 	: automatic    (false)
 	, position_hint(0)
 	, numeric      (false)
+	, bin_size     (0)
 	, show_empty   (false)
 	, split_list   (false)
 {}
@@ -72,6 +73,7 @@ IMPLEMENT_REFLECTION_NO_GET_MEMBER(StatsDimension) {
 		REFLECT_N("icon", icon_filename);
 		REFLECT(script);
 		REFLECT(numeric);
+		REFLECT(bin_size);
 		REFLECT(show_empty);
 		REFLECT(split_list);
 		REFLECT(colors);