appendfile: remove unused manifest code

revlog: simplify revlog version handling - pass the default version as an attribute on the opener - eliminate config option mess

revlog: don't pass datafile as an argument

Merge additional fixes for my matcher changes

glob:<directory> patterns match the files in that directory. This makes the behaviour of glob: patterns more consistent: hg status glob:dir and hg status -I glob:dir will match the same files. It's also consistent with the fact that {rel,}path patterns recursively match the contents of a directory.

Pass normalized directory names to the ignore function This fixes a bad performance regression caused by dd0d9bd91e0a.

tests: expand test-commit a bit to test 'hg commit .' too

fix hg commit . in the repo root

transplant: fix ignoring empty changesets (eg after filter)

Merge with crew-stable.