JDK 7 schedule and feature list updated

[Mark Reinhold]

I've updated the milestone, feature, and calendar pages [1] to reflect
the extension of M5 to cover M6, per my announcement last Thursday [2].

I've also updated the feature list to reflect the dropping of the Swing
Application Framework (JSR 296) [3], and to identify the Nimbus L&F as a
self-standing feature rather than merely a part of a 6u10 forward-port
feature.

- Mark


[1] http://openjdk.java.net/projects/jdk7
[2] http://mail.openjdk.java.net/pipermail/jdk7-dev/2009-September/000938.html
[3] http://weblogs.java.net/blog/archive/2009/08/19/saf-and-jdk7