Rev 1601: Add MergeSort facility to bzrlib.tsort. in /home/robertc/source/baz/logsort/

[Robert Collins]

------------------------------------------------------------
revno: 1601
revision-id: robertc at robertcollins.net-20060328111628-47766b0fdfa443ab
parent: robertc at robertcollins.net-20060327070904-df062ddc4cf415ad
committer: Robert Collins <robertc at robertcollins.net>
branch nick: logsort
timestamp: Tue 2006-03-28 22:16:28 +1100
message:
  Add MergeSort facility to bzrlib.tsort.
modified:
  bzrlib/tests/test_tsort.py     testtsort.py-20051025073946-27da871c394d5be4
  bzrlib/tsort.py                tsort.py-20051025073946-7808f6aaf7d07208