A new release of Croupier my Crystal library for tasks and dataflow programming is out!

• Tasks with­out in­puts should be treat­ed like al­ways_run tasks
  (found via bug in Hacé)
• Tasks with­out in­puts and mul­ti­ple out­puts should not run twice
  (found via bug in Hacé)
• Made TaskMan­ag­er an in­stance of a struc­t, and lost all the
  class vari­ables, sim­pli­fy­ing code.
• Re­moved some small meth­ods from TaskMan­ag­er.