mq: expand help text for qdiff Thanks to Waldo for thinking about this and formulating some text.

status: refactor status command - directly calculate a list of states to show - simplify repo.status call - use zip to build file list - only add relevant copies to copy dict

match: cleanup match classes a bit

match: remove files arg from repo.status and friends

match: remove files argument from patch.diff

match: use match.files() for patch.diff

match: stop passing files through commitfunc

status: use match helpers for various users

churn: simplify hg status call

match: use helpers for cmdutil

match: add always, never, and exact methods

remove default arg from patkind

resolve: use cmdutil.match

dirstate: remove default from status list_unknown

purge: remove unused 'missing' logic

dirstate: minor status cleanups

status: rename type_ to state

walk: use match.bad in statwalk

walk: use match.dir in statwalk

walk: make dirstate.walk return a single value too

walk: return a single value

walk: remove cmdutil.walk

walk: remove rel and exact returns

walk: remove more old badmatch logic

walk: remove remaining users of cmdutils.matchpats

cmdutil: switch commit to match

walkchangerev: use new match objects

walk: pass match object to cmdutil.walk - introduce cmdutil.match - change args to cmdutil.walk - create match objects for walk calls

walk: begin refactoring badmatch handling

walk: remove files arg from repo.walk and dirstate.walk