merge with i18n

i18n-ja: synchronized with 69ffbbe73dd0

tag: clarify warning about making a tag on a branch head Currently the warning is ambiguous about whether the new tag (possibly specified via --rev) is being added on a branch head or whether the working directory is based on a branch head. Clarify the error message to eliminate this ambiguity.

contrib: check reference to old selenic.com domain Now, all URL in Mercurial source tree should refer mercurial-scm.org domain instead of selenic.com. *.po files are ignored in this patch, because they might contain msgid/msgstr coming from old source files. This ignorance seems safe enough, because such msgstr should be ignored at runtime, because: - msgid corresponded to it should be invalid, or - msgstr itself should be marked as fuzzy at synchronized to recent hg.pot If any additional examination for *.po files is needed in the future, let i18n/check-translation.py achieve such examination. BTW, some binary files (e.g. *.png) are meaningless for checking reference to old domain in this patch, but aren't ignored like as *.po files, because excluding multiple suffixes is difficult for regexp matching.

check-code: discard filtering result of previous check for independence Before this patch, check-code.py applies filtering on the file content, to which filtering of previous check is already applied. This might hide issues, which should be detected by a subsequent check in "checks" list. Fortunately, this problem hasn't appeared, because there is no overlapping of filename matching (examined in the order below). 1. *.py or *.cgi 2. test-* (not *.t suffix) 3. *.c or *.h 4. *.t 5. *.txt 6. *.tmpl For example, adding a test, which wants to examine raw comment text in *.py files, at the end of current "checks" list doesn't work as expected, because a filter for *.py files normalizes comment text in them. Putting such test at the beginning of "checks" list also resolves this problem, but such dependence on the order decreases maintainability of check-code.py itself. This patch discards filtering result of previous check at the beginning of each checks, for independence of each checks.

help: replace selenic.com by mercurial-scm.org in man pages Source code repository and mailing list services have been already migrated to mercurial-scm.org domain.

help: replace selenic.com by mercurial-scm.org in command examples Source code repository service of Mercurial itself has been already migrated to mercurial-scm.org domain.

hghave: fix 'rmcwd' to ensure temporary directory is removed On platforms where cwd can't be removed, it should try rmdir() after chdir to the original cwd.

httppeer: make __del__ access to self.urlopener more safe Some errors could in some cases show unfortunate scary and confusing warnings from the httppeer delstructors: abort: nodename nor servname provided, or not known Exception AttributeError: "'httpspeer' object has no attribute 'urlopener'" in <bound method httpspeer.__del__ of <mercurial.httppeer.httpspeer object at 0x106e1f5d0>> ignored``` To mute that, take 7b15dd9125b3 to the next level and use getattr in __del__.

tests: test preserving execbit changes at amending only on execbit platform