Croak if is_joinable, is_running, or join is called by a non-managed
process in MCE::Child. Added LIMITATION section to the documentation.Improved is_joinable, is_running, list_joinable, and list_running
in MCE::Child. Thank you, Philippe Baumgart.Added example (Consumer requests item) to MCE::Channel documentation.
Support the task_end option regardless if user_tasks is specified.
Support IO::All::{ File, Pipe, STDIO } for input data including
output via MCE->print($io, ...), printf, and say.Support gather => MCE::Candy::out_iter_fh($io) using MCE::Candy.