[ANN] posix_mq 0.5.0 - POSIX Message Queues for Ruby

POSIX message queues allow local processes to exchange data in the form
of messages. This API is distinct from that provided by System V
message queues, but provides similar functionality.

* http://bogomips.org/ruby_posix_mq/
* ruby.posix.mq@librelist.com
* git://git.bogomips.org/ruby_posix_mq.git


Uncommonly raised exceptions due to programmer error are now
raised more safely with respect to the MRI garbage collector.

The "posix-mq.rb" executable has been renamed to "posix-mq-rb"
to respect RPS and is also hopefully easier to type/read when
used in scripts. I'm preserving the "rb" in the name since I
hope to have a more portable, C-only version someday.

Minor cleanups and documentation now uses RDoc 2.5.x


Eric Wong