John Mulligan <phlogistonjohn@asynchrono.us> [Sun, 25 Jan 2009 13:20:43 -0500] rev 7728
branch closing: permit closing the default branch
There was no good reason to special case the 'default' branch.
Allow the 'default' branch to be closed if the user wants it.
If you're uncomfortable about mistakenly closing the default branch,
you can always reopen the branch by commiting a "normal" changeset onto
the closed branch.
demandimport: patch __builtin__ instead of __builtins__
This helps on implementations other than CPython, where __builtins__ isn't
necessarily defined (as it's an implementation detail for CPython).