zeroconf: flag third-party Zeroconf.py for ignore in check-code

check-code: add some ignore hints

check-code: check thyself

Merge with stable.

patchbomb: document [patchbomb] config section for addresses

hgrc.5: whether bcc is prompted for is up to the extension There is no code in mail.py that forbids an extension to prompt for bcc.

many, many trivial check-code fixups

Introduce check-code.py check-code is a simple regex-based framework for checking our code and tests for common style and portability errors. Currently, it knows a fair amount about our Python and C style, and a little about common shell script portability problems.

merge with stable

test-encode: Use tr chacter classes instead of character ranges Solaris ...

Merge with stable

templates: do not add "ago" twice After 1d75c683ada1, "ago" is added by the ago template filter.

Merge with stable

tests: Don't use $PWD $PWD doesn't work with solaris sh - use `pwd` instead

mq: Do not translate import message that are appended to commits. We should not translate the "imported patch" message. The translated message confuses the detection whether the user has not updated the commit message yet. We try to avoid to translate generated commit messages.

subrepo: handle svn externals and meta changes (issue1982) - Detect changes to meta on regular and external entries - Do not try to commit external entries