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...ActionController::Flash::FlashHash. As all other Ruby applications should be able to unmarshal a Hash, this will avoid the Marshal.load method in Rack::Session::Cookie from throwing a NameError exception. Signed-off-by: Ken Barber <ken@bob.sh> Add addgroup, addclass, listgroups, listclasses tasks for nodes Previously if a user wanted to use rake tasks to interrogate the dashboard about which groups or classes a node belonged to, they would be out of luck. Similarly, if a user wanted to add a class or group to a node without replacing the already assigned classes/group...