GUACAMOLE-394: Expose "last active" time for connections and users via REST API.

guacamole/src/main/webapp/app/rest/types/Connection.js

@@ -104,6 +104,15 @@ angular.module('rest').factory('Connection', [function defineConnection() {
          */
         this.sharingProfiles = template.sharingProfiles;
 
+        /**
+         * The time that this connection was last used, in seconds since
+         * 1970-01-01 00:00:00 UTC. If this information is unknown or
+         * unavailable, this will be null.
+         *
+         * @type Number
+         */
+        this.lastActive = template.lastActive;
+
     };
 
     return Connection;

guacamole/src/main/webapp/app/rest/types/User.js

@@ -53,6 +53,15 @@ angular.module('rest').factory('User', [function defineUser() {
          */
         this.password = template.password;
 
+        /**
+         * The time that this user was last logged in, in seconds since
+         * 1970-01-01 00:00:00 UTC. If this information is unknown or
+         * unavailable, this will be null.
+         *
+         * @type Number
+         */
+        this.lastActive = template.lastActive;
+
         /**
          * Arbitrary name/value pairs which further describe this user. The
          * semantics and validity of these attributes are dictated by the