grants table displays number of access tokens associated with grant (not id or refresh tokens), closes #555

openid-connect-server-webapp/src/main/webapp/resources/js/grant.js

@@ -240,6 +240,7 @@ var ApprovedSiteView = Backbone.View.extend({
         
         this.$('.dynamically-registered').tooltip({title: 'This client was dynamically registered'});
         this.$('.whitelisted-site').tooltip({title: 'This site was whitelisted by an adminstrator'});
+        this.$('.tokens').tooltip({title: 'Number of currently active access tokens.'});
         
 		return this;
 	},

openid-connect-server-webapp/src/main/webapp/resources/template/grant.html

@@ -94,6 +94,7 @@
 		<% if (client.dynamicallyRegistered) { %>
 			<span class="label label-inverse dynamically-registered"><i class="icon-globe icon-white"></i></span>
 		<% } %>
+		<span class="label label-info tokens"><%= grant.approvedAccessTokens.length %></span>
 	</td>
 
     <td>