Update to 0.99

Upstream changes:
0.99 Fri Mar 30 2018
- Fixes for windows unit tests so they skip or pass.
  t/autoflush.t
  t/readonly.t
  t/run_stdin-callback-return-array.t

0.98 Thu Mar 29 2018
- Switch to using $!{EINTR}
- Honor umask for user/group permissions on a +rw file
- Remove commented code from RT 50739
- #63 - Patch for fixing _write on invalid objects
- #54 - Make slave the controlling terminal so more programs can be called from IPC::Run reliably
- #53 - Prevent Not a GLOB reference in close_terminal by untieing before close
- #46 - '&' closing the stdin of the right process.
- #41 - Do POSIX::_exit not ::exit
- #40 - Assure child Win32 processes have same priority as parent
- #38 - Add unit test for passing use of Readonly.pm
- #39 - Fix GLOB test in IPC::Run::IO->new
- #86 - Fix for memory leak [rt.cpan.org #57990]
- MANIFEST was updated. New tests may start shipping now.

0.97 Mon Mar 26 2018
- Update meta and POD to point to GitHub issues not RT.
- Update README with pod changes.
- Fix variable name in synopsis - [Github #47]
- Fix t/run.t to work on "perl in space" - [Github #100]

(wen)