[dmd-beta] beta branch name

[Brad Roberts]

When did the beta branch switch from '2.065' to 'release' and why?  What's going to happen post 
2.065 when it's time for 2.066?  And when 2.065 needs a critical bug fix release?

Per-release branches makes a lot more sense from a patch management standpoint.  It's also meant 
that the auto-tester hasn't been testing the new 'release' branch because I didn't know it existed 
or needed testing.

Sigh,
Brad