unicorn 1.0.2

This is the latest maintenance release of the 1.0.x series.
All users are encouraged to upgrade to 1.1.x stable series
and report bugs there.

Shortlog of changes since 1.0.1:

Eric Wong (8):
      SIGTTIN works after SIGWINCH
      fix delays in signal handling
      Rakefile: don't post freshmeat on empty changelogs
      Rakefile: capture prerelease tags
      configurator: use "__send__" instead of "send"
      configurator: reloading with unset values restores default
      gemspec: depend on Isolate 3.0.0 for dev
      doc: stop using deprecated rdoc CLI options