Found the source of the growing style file bug (and fixed it)

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@645 0fc631ac-6414-0410-93d0-97cfa31319b6

src/util/delayed_index_maps.hpp

@@ -32,6 +32,11 @@ IndexMap<Key,Value>& DelayedIndexMaps<Key,Value>::get(const String& name, const
 	return item->read_data;
 }
 
+template <typename Key, typename Value>
+void DelayedIndexMaps<Key,Value>::clear() {
+	data.clear();
+}
+
 // ----------------------------------------------------------------------------- : Reflection
 
 // custom reflection : it's a template class