i18n: cache translated messages per encoding This is a simpler workaround alternative to D958, "i18n: clean msgcache when encoding changes." The cache won't be bloated unless you run tons of commands with different --encoding options on command server, or serve many repositories of different web.encoding options on hgweb. The test was originally written by Jun Wu. Differential Revision: https://phab.mercurial-scm.org/D1053

templater: fix ifcontains() to handle type mismatch gracefully This was unintentionally changed in ee0d74083a22. Since ifcontains() takes needle of any types, it shouldn't abort depending on the given container type.

help: use single quotes in ``template example`` It was hard to read because ``""`` was rendered as """".

help: hide template keywords of obsolescence as they are still experimental

help: fix formatting of template keywords Our minirst formatter can't render multi-paragraph definition lists well. Also added periods where appropriate.

chg: remove outdated rule to start test server This rule is no longer useful because chg daemon may be killed and respawned per config/environment hash. We can't reliably run a daemon in foreground.

configitems: drop redundant default of web.allow<archtype> Otherwise develwarn would be sent to stderr. I've added blackbox logging to capture warnings.

configitems: correct default values of web.allow<archtype> and web.hidden The default of ui.configbool() is False unless explicitly specified.

bdiff: include compat.h in header to define ssize_t Before ff4c9c6263de, compat.h was included first so it happened to work. But we shouldn't rely on the include order.

test: add an extra case for obsolescence distributed case This changeset introduces a new documented test case for a distributed obsolescence scenario. The scenario involves a simple case where some obsolescence markers are retrieved before the changeset they affect. See the test case documentation for details. We also test variants where the changesets are added from a bundle.