* Add TypeDeployer interface, which allows control over the deployment of
  types from a typelib.

* Add RoleManager.addNameRoleMapping().

* TypeManager methods now take a role Class object, rather than role name.

* Replace implicit role and type deployment in DefaultRoleManager.initialize()
  and DefaultDeployer.initialize() with explicit createDeployer( ClassLoader )
  method.

* DefaultDeployer now keeps track of the ClassLoader created for each typelib.

* Moved all ClassLoader creation to DefaultDeployer, for the time being.

* ConverterDef and AbstractTypeDef now use Deployer, rather than
  deploying manually.

* Fixed DefaultMasterConverter for the case where destination is an interface,
  and there is no appropriate converter registered.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271030 13f79535-47bb-0310-9956-ffa450edef68