#TODO:
    
    * hide ENLTemplate from navigation

    * add validator to ENLSubsciber to check if this email already exists, 
      works now only for the portlet, but not if we use the add item menu. [derstappenit]

    * provide default values for sender_name, sender_address and test_email from portal_properties

    * cleanup of double opt-in tempobjects, don't use PasswordResetTool [derstappenit]

    * move the send method and all other stuff, which is not releated to the ENLIssue it self into a z3 global utility

    * log sending messages "send to max@example.com: OK" into the issue object, provide a view to show the log   
