IO-Async 0.805

on Perl CPAN

• Document and test that separate ->watch_io calls for read and
  write-readiness work correctly
  
• Implement (most of) the Future::IO->poll API in
  Future::IO::Impl::IOAsync
  

[BUGFIXES]

• Ensure that IO::Async::File copes correctly with missing files
  (RT136578)
  
• Test2's bail_out() is named in lowercase, not BAIL_OUT.
  
• Update the time_between() test helper function to be better
  suited to Test2