JDK 7 Milestone 3

[Mark Reinhold]

Thus far we've been fairly lax about managing change in the first two
milestones, but Milestone 3 is the "JavaOne Preview" milestone and as
such we need to make sure that it's solid.

So here's the plan:

  - Features targeted to M3 should be integrated into b54.  If you need
    more time, please coordinate with the Release Team.  In either case,
    coordinate with your local gatekeeper to make sure your changes are
    pushed into an appropriate group forest in time for integration into
    the master forest.

  - The first four builds (b54-57) will be open for bug fixes and small
    changes without prior approval, except for the usual requirement of
    at least one code review and CCC review, if appropriate.

  - Changes for the last two builds (b58, 59) will require Release Team
    approval.  The RT will meet several times per week, if necessary,
    to ensure low latency on decisions.  Approval requests and grants
    will be recorded via keywords on Sun bug entries.

  - The last build (b60) is reserved for showstoppers.  If there are no
    showstoppers then we'll skip this build.

Comments welcome.

- Mark