* Target start and finish events are now fired for a project's implicit target.
* Unit tests now run against a dummy myrmidon install.
* Tidy-up some error messages.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271443 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271289 13f79535-47bb-0310-9956-ffa450edef68

* Got rid of <converters> element from antlib descriptor.  Converters are
  now defined in the <types> element.

* Moved (most of) the role-specific knowledge from Deployment back to DefaultDeployer.

* Split out ClassLoader management into DefaultClassLoaderManager.  This is
  living in the deployer package for now.

* Tidied-up the component set-up and clean-up in DefaultEmbeddor.  Added
  the ClassLoaderManager component.

* Added test for TypeDeployer.deployAll().

Changes to unit tests:

* Added AbstractMyrmidonTest, which takes care of locating test resources.

* Changed the VFS, type factory, and deployer tests to use AbstractMyrmidonTest.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271271 13f79535-47bb-0310-9956-ffa450edef68