Rev 1448: Turn branch format.open into a factory. in /home/robertc/source/baz/branch-formats

[Robert Collins]

------------------------------------------------------------
revno: 1448
revision-id: robertc at robertcollins.net-20060116231610-79021f5b63d883f6
parent: robertc at robertcollins.net-20060116073453-80b3e1ef7706d097
committer: Robert Collins <robertc at robertcollins.net>
branch nick: branch-formats
timestamp: Tue 2006-01-17 10:16:10 +1100
message:
  Turn branch format.open into a factory.
modified:
  bzrlib/branch.py               branch.py-20050309040759-e4baf4e0d046576e
  bzrlib/tests/test_branch.py    test_branch.py-20060116013032-97819aa07b8ab3b5
  bzrlib/tests/test_branch_implementations.py testbranch.py-20050711070244-121d632bc37d7253
  bzrlib/tests/test_fetch.py     testfetch.py-20050825090644-f73e07e7dfb1765a