rebase: abort cleanly when we encounter a damaged rebasestate (issue4155)

i18n-ja: change phrasing for "or"

i18n-ja: fix some quoting problems for space character usage

i18n-ja: synchronized with f493c2f67430

i18n: fix non-matching 1st line indentations When generating documentation, indentation must match for getting the same view for translated messages. Often an output is generated anyway, but it can look different. When a syntactically wrong indentation change is done, runrst will fail (this is detected by test-gendoc.t). Fix the simple places. When translation knowledge is necessary, the entry is marked as fuzzy (and therefore skipped when generating translations). A translator can fix it later.

i18n: fix some non matching quotation marks in translations A test for this is in preparation.

i18n: do not translate rst syntax .. note:: .. note:: is rst syntax which must not be translated. Fix this in the translations. This is not the first time this happens, so there should be a note for the translator. A later patch will change the generation of the po files to write this automatically. A test in i18n/check-translation.py could help as well.

i18n-pt_BR: synchronized with 268a5ab5c27b

subrepo: make it possible to update to hidden subrepo revisions When a subrepo revision was hidden it was considered missing and mercurial was unable to update to the corresponding parent revision. Instead warn the user of the problem and let it choose what to do (the default is to udpate anyway).

subrepo: remove unnecessary else clause in hgsubrepo._get This revision has no behaviour change. It simply removes an unnecessary else that follows an if / return block. The change looks big because a big chunk of code has been unindented one level.