Reduce coupling between ValueEditors/Viewers and Set and StyleSheet.

- Adding of actions is done with an addAction function
 - Files are read from
     - getStylePackage for styling stuff (this is stylesheet)
     - getLocalPackage for symbol and image values (this was the set)


git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@970 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/set/cards_panel.cpp

@@ -207,7 +207,7 @@ void CardsPanel::onCommand(int id) {
 			card_list->selectNext();
 			break;
 		case ID_CARD_ADD:
-			set->actions.add(new AddCardAction(*set));
+			set->actions.addAction(new AddCardAction(*set));
 			break;
 		case ID_CARD_REMOVE:
 			card_list->doDelete();