new milestones for charter update

[Tom Yu <tlyu@xxxxxxx>]

These are milestones from the proposed charter update, modified to be
about four months later.  In about a week, if there are no objections,
I will submit the proposed charter to the IESG.

Done	initial I-D for DIGEST-MD5 to Historic
Done	WGLC I-D for DIGEST-MD5 to Historic
Feb 08	initial impl. report questionnaire
Feb 08	initial RFC4422bis
Feb 08	initial I-D for DIGEST-MD5 successor
Feb 08	DIGEST-MD5 to Historic I-D to IESG
Mar 08	send impl. report questionnaire
Apr 08	compile impl. questionnaire responses
Jun 08	WGLC RFC4422bis
Jun 08	WGLC DIGEST-MD5 successor
Jul 08	discuss impl. questionnaire responses
Aug 08	final impl. report
Aug 08	RFC4422bis to IESG
Aug 08	DIGEST-MD5 successor to IESG