initialize RoleDefinition.priority as a float, because it's imported as a float

by business template. This property does not seem to be used BTW


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24596 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/RoleInformation.py

@@ -58,7 +58,7 @@ class RoleInformation( SimpleItem ):
         self.description = description
         self.category = category
         self.condition = condition
-        self.priority = priority
+        self.priority = float(priority)
         self.base_category = base_category
         self.base_category_script = base_category_script