context: generate file ancestors in reverse revision order (
issue2642)
The related() function in copies assumes that revisions are generated
in reverse revision order, so it was getting confused in some situations.
to build a new macosx binary package:
install macpython from http://www.python.org/download/mac
install py2app from http://pythonmac.org/packages/
make sure /usr/local/bin is in your path
run bdist_mpkg in top-level hg directory
find packaged stuff in dist directory