Release 1.5 branch created

[Juan Manuel Palacios]

	Evening everyone!

	I finally created the release_1_5 branch wherefrom we'll start  
cutting the 1.5.x releases, really soon now I hope! For those willing  
to help around in sanitizing, please reinstall off this branch and  
test as thoroughly as posible, reporting any findings you may come by.  
I'll rework the roadmap to move open tickets in the 1.4 milestone to  
1.5, as well as those that were fixed in it but not released to users  
(committed to trunk, which as of r26608 is the same as release1_5) but  
not to the release_1_4 branch. Any new ticket on the base component  
should be submitted to the 1.5 milestone, consider 1.4 closed!

	As said previously, I'm mainly interested in reports on upgrading  
existing 1.4.x installations to 1.5 through any mean (selfupdate,  
make, binary -- I know there's no dmg up yet, but you can always build  
your own ;-). Even though I haven't received a single one to date (and  
supposedly "no news is good news), I'd still love to hear whatever  
you, the tester, have to say about it.

	Thanks to all for the help and attention, thanks to those who've put  
so much into improving the MacPorts core! Regards,...


-jmpp