Fixed some stuff

so much I don't even remember

lib/channel.js

@@ -47,6 +47,18 @@ var Channel = (function () {
     }
 
     _createClass(Channel, [{
+        key: "permissionsOf",
+        value: function permissionsOf(member) {
+
+            var mem = this.server.getMember("id", member.id);
+
+            if (mem) {
+                return mem.permissionsIn(this);
+            } else {
+                return null;
+            }
+        }
+    }, {
         key: "equals",
         value: function equals(object) {
             return object && object.id === this.id;