Lightweight peer implementation

[Tom Tromey]

>>>>> "Tom" == Thomas Fitzsimmons <fitzsim@redhat.com> writes:

Tom> OK, here is another patch that builds on Scott's.  I've left the
Tom> Component null checks alone for now.  The patch moves GLightweightPeer
Tom> to gnu.java.awt.peer and implements some of the missing ComponentPeer
Tom> methods.

This looks good to me.  Please check it in.

It would be nice if the javadoc for the new class explained its role
in things -- sort of a summary of the stuff worked out during this
discussion.

Tom