Release Name: 0.4.0

Notes:
In this release CC.rb becomes much smarter about handling plugins, 
and the Dashboard is looking awesome after some UI design love (more to come in the next version).

Release 1.0 is getting closer by the hour.


Changes:
  - pretty user interface
  - 'Build now' button
  - dashboard displays projects as panels, not table rows
  - monitoring cruisecontrol.rb builds with CCTray.net
  - browser autorefresh - seeing latest build status without hitting 'refresh' on browser
  - builder's current activity (down/sleeping/checking for modifications/building) on the dashboard
  - builder plugin may be packaged as a directory with multiple files. It must have init.rb then.
  - plugin error handler: if a plugin raises an error in response to notification, builder logs the error, 
    notifies all other plugins, then raises an error of its own (thus triggering the build_loop_failed event)
  - improved error handling during builder initialization
  - Bugfix: blocked spaces in project names