Persist `autoPairDelimiters` setting.

services/web/app/coffee/Features/User/UserController.coffee

@@ -74,6 +74,8 @@ module.exports = UserController =
 				user.ace.fontSize = req.body.fontSize
 			if req.body.autoComplete?
 				user.ace.autoComplete = req.body.autoComplete
+			if req.body.autoPairDelimiters?
+				user.ace.autoPairDelimiters = req.body.autoPairDelimiters
 			if req.body.spellCheckLanguage?
 				user.ace.spellCheckLanguage = req.body.spellCheckLanguage
 			if req.body.pdfViewer?