Ruby mogilefs-client 3.8.0

Ruby mogilefs-client 3.8.0

Mostly documentation updates and test cleanups.  Nothing interesting
for the regular client, but the admin client now shows the
checksum-related fields in get_devices.

Most notably, there's a public-inbox for those who don't want
to subscribe to the MogileFS list:

	mogilefs-client-public@bogomips.org

Archives are at: http://bogomips.org/mogilefs-client-public/

There is no new mailing list subscription, it is only a
public-inbox.  Cc-ing the MogileFS list at mogile@googlegroups.com
is encouraged if you do have a subscription.

shortlog since 3.7.1:

      add mog-sync example script
      admin (doc, get_hosts): display integers in results doc
      update documentation and packaging
      GNUmakefile: publish examples on the site, too
      examples: add usage_fetcher example
      TODO: remove Cool.io and EventMachine references
      admin: flesh out get_devices
      admin: reduce bytecode overhead of get_stats
      tests: create fresh intances for all integration tests
      include mogilefs/version.rb in the distro
      test: fixup object lifetimes and teardown
      new public-inbox: mogilefs-client-public@bogomips.org