* CLIMain now uses the listener's short name, rather than classname, to
  construct the listener.  This is done with the help of the Embeddor.

* Added NoPrefixProjectListener, which emulates the -emacs mode of Ant 1.x.

* Added -p, --noprefix command-line option, to use the NoPrefixProjectListener.

* Changed the methods on ProjectListener to take event objects.  Combined the
  log() methods into a single method.

* Moved state tracking out of AbstractProjectListener, and into DefaultWorkspace
  (where it doesn't need to be tracked).  State info is now available via the
  event objects passed to the listener methods.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271305 13f79535-47bb-0310-9956-ffa450edef68