1.7.0 beta 1 tagged and ready to test

[Bryan Blackburn]

A 1.7.0 branch has been created [1] and a tag for 1.7.0 beta1 is available
for testing [2].  Considering the stability of trunk lately, this will
hopefully be the only beta and we can move to a release candidate soon,
barring issues.  When testing, be sure to check the 1.7.1 milestone [3] as
there are a few issues already known which have been moved to 1.7.1 so a
1.7.0 can be pushed out the door to finally (finally!) get people away from
the postflight and Tcl environment problems.

So everyone test it out, and be sure to have a look at the long list of
changes [4] since 1.6.0, as there are quite a few...

Bryan

[1] - <http://trac.macports.org/browser/branches/release_1_7>
[2] - <http://trac.macports.org/browser/tags/release_1_7_0-beta1> and
      <http://svn.macports.org/repository/macports/tags/release_1_7_0-beta1>
[3] - <http://trac.macports.org/milestone/MacPorts%201.7.1>
[4] - <http://trac.macports.org/browser/tags/release_1_7_0-beta1/base/ChangeLog>