Merge pull request #9 from hintjens/master

zpipes server implements zpipes protocol
Merge pull request #18 from hintjens/master

Fixed issue #15
Fix inability to close pipe in "expecting chunk" state

When doing a blocked read and EINTR occurs, the server state
was stuck in expecting chunk, and would't accept a close
command.
Merge pull request #28 from rpedde/close-after-eintr-or-timeout

Fix inability to close pipe in "expecting chunk" state
Revert "Fix inability to close pipe in "expecting chunk" state"

This reverts commit acc3b1cda216623a2c84d4c27a5ace56d3986639.

This fixes issue #29.