Depricated import in Cornerstone ThreadManager interface

Hi,

It looks like the
org.apache.avalon.cornerstone.services.threads.ThreadManager
interface imports a depricated ThreadPool interface.

Perhaps the following should be applied (and excalibur-thread*-jars
updated) ?
- import org.apache.avalon.excalibur.thread.ThreadPool;
+ import org.apache.excalibur.thread.ThreadPool;

so that cornerstone can build against the lastest
excalibur-thread*-jars without compile time warnings and runtime problems.

Regards,
Michael Melhem