new bean property which returns a map. map contains request parameter names and values, which is populated in EditActivity action. This is used to generate the link for the authoring url (when user clicks on edit button)
moved copyValuesIntoSession and isContentEditable functions into the utility class. in editActivity, the state of the flags are added into the session,
new method implementations for addUser and addSession, updated code to match the new implementations of ToolSessionManager and ToolContentManager. Accoutns for the ToolException and DataMissingException which may be thrown