hg: have peer() call _lookup directly
Note that this means that peers no longer call the extension
repository setup hooks.
fileset: basic pattern and boolean support
debugfileset can now generate file lists for things like:
"* and not hg*"
tests: fix updated monotone version requirement
0969d91fad5c only updated the comment, not the actual check.
check-code: catch misspellings of descendant
This word is fairly common in Mercurial, and easy to misspell.