Publishing releases to RubyForgeEdit

Notes made while publishing the Walrus gem to RubyForge for the first time.

# once-off setup
rubyforge setup
rubyforge config

# publishing a release
rubyforge login && \
rubyforge add_release walrus walrus 0.1 walrus-0.1.gem \
  --release_notes "initial release" \
  --release_changes "initial release"