• Documentation improvements (gh#367)
  
• alien_diag from Test::Alien::Diag now can optionaly take a
  hash reference as its last argument (gh#365, gh#366)
  
• alien_diag supports two new options properties and
  list_properties (gh#365, gh#366)
  
• Document that alien_diag may take more than one alien as
  an argument (this has always been the case, but never
  documented (gh#366)