zsh completion: tweak options for `incoming`, `outgoing` and `rebase` * `incoming --rev` completes _hg_labels, not jsut tags; * `outgoing --rev` completes revrange; * source/dest/base for `rebase` require argument.

zsh completion: update mq commands completion * add qclone command; * qapplied/qunapplied: add --last/--first; * qdiff: add all diff options; * qfold: add --force, --no-backup; * qgoto: add --keep-changes; * qimport: add --git, --push; * qnew: add user- and date-related options; * qpop/qpush: add --keep-changes and --no-backup, drop --name; * qpush: drop deprecated --merge; * qrename: complete only unapplied patches' names; * strip: add --rev, --keep, --bookmark, update descriptions, drop --backup.

zsh completion: add new options for existing commands * backout: add --tool; * bisect: add --extend; * bookmarks: add --inactive; * branches: add --closed; * bundle: add --rev, --all, --branch; * cat: add --decode; * clone: add --updaterev, --branch, --pull and use common-with-qclone opts; * commit: add --close-branch; * diff: add --change, --reverse, --stat, --text, --unified; * export: add --rev; * grep: add --date; * heads: add --topo, --closed; * help: add --extension, --command, --keywords; complete additional help topics also, not commands only; * identify: add --bookmark and remote_opts; * import: add --no-commit, --exact, --import-branch, --date, --user, --similarity and commit options; * log: add --user, --date, --stat, --git, --graph; * manifest: add --rev; * push: add --new-branch; * resolve: add --all, --no-status, --tool and pattern options; * revert: add --date; * serve: add --prefix, --web-conf, --pid-file, --cmdserver, --certificate; * status: add --change; * tag: add --force, --edit, --remove; * tip: add --git; * update: add --check, --date.

zsh completion: add support for convert, graphlog, purge, record extensions

zsh completion: add subrepos options for all supporting commands

zsh completion: add new option groups for options Add clone, date/user, git-style, merge tool, ignore space, log, branch/bookmarks options and use them throughout command completions.

zsh completion: add `forget` and `rollback` commands

zsh completion: complete additional topics for `help`, not commands only

Merge with stable

tests: merging bookmarked heads 45b5eb2941d0 fixed an error that occured when heads being merged were both inactive bookmarks. Add a test for that case.

merge with stable

debuginstall: show directory for Python lib Example new output on Windows: $ hg debuginstall checking encoding (cp1252)... checking Python lib (C:\Users\adi\hgrepos\hg-main\hg-python\lib)... checking installed modules (C:\Users\adi\hgrepos\hg-main\mercurial)... checking templates (C:\Users\adi\hgrepos\hg-main\mercurial\templates)... checking commit editor... C:\Program Files (x86)\Notepad++\notepad++.exe checking username... no problems detected on Linux: adi@kork-ubuntu64:~/hgrepos/hg-main$ ./hg debuginstall checking encoding (UTF-8)... checking Python lib (/usr/lib/python2.7)... checking installed modules (/home/adi/hgrepos/hg-main/mercurial)... checking templates (/home/adi/hgrepos/hg-main/mercurial/templates)... checking commit editor... checking username... no problems detected

util: replace util.nulldev with os.devnull Python since 2.4 has supported os.devnull so having util.nulldev is unnecessary.

revset: add hidden() revset

wix: bump MSI based installers to use Python 2.7 We're somewhat forced to use Python 2.7 for the bdist packages, so we might as well use 2.7 for the MSI installers as well.