Fix bug of removing pipe with the current priority

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Test refactoring typo fixed

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Accept different error codes from close()

This should fix issue #148

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Fix installation of nanocat

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Immanuel Weber added to AUTHORS file

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>