WeakRef updated to support Tango, too

[Bill Baxter]

Tomas Lindquist Olsen wrote:
> Minor issue, the 'string' alias should be private, or it may conflict 
> with aliases made by the user.

As far as I know, private aliases conflict just like public ones, not so?

> To others:
> 
> Please go to http://dsource.org/projects/tango/ticket/548 and add your 
> support for tango adopting this alias. This kind of issue is the main 
> reason I want them to add it.

I seem to have already done that.  And filed a very similar bug to boot 
that larsivi closed as a dup.  :-)

--bb