<http://schema.org/description>
"If you are using custom security roles for the user and also using the CRM Mobile applications, you might run into a permissions issues due to some new entities. One of the new features of CRM 2016 is Custom controls..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://crm.davidyack.com/crm-2016-mobile-app-and-custom-security-roles/>