Added userData property to custom figure handler

Author: cafarm

src/main/matlab/+symphonyui/+app/App.m

@@ -7,7 +7,7 @@
         end
 
         function v = version()
-            v = '2.0.1.3'; % i.e. 2.0-b3
+            v = '2.0.1.4'; % i.e. 2.0-b4
         end
 
         function c = copyright()

src/main/matlab/+symphonyui/+builtin/+figures/CustomFigure.m

@@ -1,5 +1,9 @@
 classdef CustomFigure < symphonyui.core.FigureHandler
 
+    properties
+        userData
+    end
+    
     properties (SetAccess = private)
         handleEpochCallback
         clearCallback