Editor: Remove Display_YesNo
The display type Display_YesNo is redundant, because that is just a boolean. It needs to be removed and all columns using it need to be changed to using Display_Boolean.
(RM-2725 from redmine: created on 2015-06-26 by Marc Zinnschlag, , closed on 2015-08-08 by Taras Kudryavtsev)
Edited by redmine