iwc client fixes

lib/Connectors/IwcConnector.coffee

@@ -16,7 +16,11 @@ createIwcConnector = (callback)->
   root_element = null
   received_HB = null
 
-
+  #
+  # The Iwc Connector adds support for the Inter-Widget-Communication protocol that is used in the Role-SDK.
+  # @see http://dbis.rwth-aachen.de/cms/projects/the-xmpp-experience#interwidget-communication
+  # @see http://dbis.rwth-aachen.de/cms/projects/ROLE
+  #
   class IwcConnector
     constructor: (@engine, @HB, @execution_listener, @yatta)->
       @duiClient = duiClient

lib/Connectors/TestConnector.coffee

@@ -2,6 +2,10 @@
 _ = require "underscore"
 
 module.exports = (user_list)->
+
+  #
+  # A trivial Connector that simulates network delay.
+  #
   class TestConnector
     constructor: (@engine, @HB, @execution_listener)->
       send_ = (o)=>