small fixes for the parent patch
- format.usestore is a boolean option
- python wart: ("revlogv1") is a string, not a tuple
- only create a dummy changelog if we're using a store
- add a test
To run the tests, do:cd tests/python run-tests.pySee http://www.selenic.com/mercurial/wiki/index.cgi/WritingTests formore information on writing tests.