added requirements to UC27

POE.R.V.15 & POE.R.DM.06 as requested in #156

ucr/index.html

@@ -821,7 +821,7 @@ <h3><dfn>POE.R.DM.05</dfn>: Set a global price for all permissions of a policy</
         <section id="POE.R.DM.06">
 			<h3><dfn>POE.R.DM.06</dfn>: Support relative time constraints</h3>
 			<em>Extend the temporal constraints by setting a time reference, any period in the rightOperand refers to this point in time. For a relativeTimePeriod constraint the rightOperand has to provide a time period as value. </em>
-			<p class="relatedUseCases"><a data-set-anchor="">POE.UC.03</a>,<a data-set-anchor="">POE.UC.15</a>,<a data-set-anchor="">POE.UC.16</a>,<a data-set-anchor="">POE.UC.19</a></p>
+			<p class="relatedUseCases"><a data-set-anchor="">POE.UC.03</a>,<a data-set-anchor="">POE.UC.15</a>,<a data-set-anchor="">POE.UC.16</a>,<a data-set-anchor="">POE.UC.19</a>,<a data-set-anchor="">POE.UC.27</a></p>
 		</section>
         <section id="POE.R.DM.07">
 			<h3><dfn>POE.R.DM.07</dfn>: Define a category property for class Party</h3>
@@ -897,7 +897,7 @@ <h3><dfn>POE.R.V.12</dfn>: New Asset Category Vocabulary</h3>
         <section id="POE.R.V.15">
 			<h3><dfn>POE.R.V.15</dfn>: Reference to Source License</h3>
 			<em>Ability to link from a Policy or a Permission to the original (text-based) license. </em>
-			<p class="relatedUseCases"><a data-set-anchor="">POE.UC.08</a></p>
+			<p class="relatedUseCases"><a data-set-anchor="">POE.UC.08</a>,<a data-set-anchor="">POE.UC.27</a></p>
 		</section>
         <section id="POE.R.V.16">
 			<h3><dfn>POE.R.V.16</dfn>: Assertion Policy Type</h3>