Rainbows! 4.3.1 + Zbatery 4.1.1 - Rack servers for slow clients

Rainbows! is an HTTP server for sleepy Rack applications and slow
clients. It is based on Unicorn, but designed to handle applications
that expect long request/response times and/or slow clients.

Zbatery is Rainbows! without the fork().

Two releases, same change:

This release fixes a potential reentrancy deadlock when
using the default logger from the Ruby standard library.

This bug did not affect any releases Unicorn, which never
uses the logger (nor acquired mutexes) inside signal handlers.

The mailing list for both projects is [email protected]
(and is the place to send questions, bug reports, comments,
patches, pull requests, etc…)