temporarily avoid exception in ace event handler

full fix will be to use the angular $http cancellation mechanism

services/web/public/coffee/ide/editor/directives/aceEditor/spell-check/SpellCheckManager.coffee

@@ -23,8 +23,8 @@ define [
 
 			@editor.on "changeSession", (e) =>
 				@highlightedWordManager.reset()
-				if @inProgressRequest?
-					@inProgressRequest.abort()
+				# if @inProgressRequest?
+				# 	@inProgressRequest.abort()
 
 				if @$scope.spellCheckEnabled and @$scope.spellCheckLanguage and @$scope.spellCheckLanguage != ""
 					@runSpellCheckSoon(200)