Show Word version and build number in exceptions.

zaaReloaded2/ExceptionHandler/ExceptionViewModel.cs

@@ -32,8 +32,7 @@ namespace zaaReloaded2.ExceptionHandler
         {
             get
             {
-                // TODO: Get Word version
-                return "n/a";
+                return Globals.ThisAddIn.Application.Build;
             }
         }