docs/man: bring English masters back in sync with the source (#893) - #900

Picks up the entries left untranslated or marked fuzzy after the
preceding pot/po regen pass:

* po/it.po -- 14 untranslated installer-string entries (extracted
  from packaging/windows/installer_strings.c via amule-project#899) and 4 fuzzy
  entries:
  - 'Uninstall' had been msgmerge-mapped to the existing 'Installa'
    translation (wrong direction); fixed to 'Disinstalla'.
  - 'aMule application files (required).' had been msgmerge-mapped to
    the existing 'Integrazione di aMule non riuscita' translation
    (unrelated); fixed to the literal 'File dell'applicazione aMule
    (obbligatori).'.
  - 'Start aMule when I log in' kept the substantively correct
    existing translation, just unfuzzied.
  - The web-server-startup message updated to reference the
    -DBUILD_WEBSERVER=YES CMake flag we use today.

* docs/man/po/manpages-it.po -- 9 untranslated entries (the new
  --configure-autostart / --force-zlib / -t/--category / -o-and-p
  optional-arg / GD-support / aMule-online-sign FILES entries from
  the amule-project#900 audit fixes) and 5 fuzzy entries on synopsis lines and
  the 'all link found' grammar fix.

Refs amule-org/amule-org.github.io#4.

Pre-release pot/po refresh ahead of 3.0.0. Driven by
scripts/update-po.sh which runs xgettext over POTFILES.in to
regenerate po/amule.pot and then msgmerge into every po/*.po.

The substantive change picked up by this sweep is the 16 Windows-
installer translatable strings extracted into amule.pot via the
packaging/windows/installer_strings.c stub added in #899 (the
LangString MYSTR_* set used by packaging/windows/installer.nsi via
the po-to-nsh.py bridge). Each catalog gains those 16 entries with
empty msgstr; translators see them in the next .po edit session and
the installer build's bridge script flips them from English
fallback to the translated text as soon as a non-empty msgstr is
present.

The bulk of the diff outside that is cosmetic: gettext-tools 0.27
rewraps some long strings differently than whatever version last
ran an update on the committed catalogs, and the #: source-location
refs shift by a few lines as source files have moved on since the
last sweep. No msgid content was lost; no existing translation was
discarded -- fuzzy markers grow only on entries whose source string
genuinely changed (e.g. man-page strings touched by the audit
fixes in #900).

Refs amule-org/amule-org.github.io#4 (pre-3.0.0 housekeeping).

Pre-release pot/po refresh ahead of 3.0.0. Runs

  cd docs/man && po4a --no-translations --force po4a.config

which re-walks the .1.in masters listed in po4a.config and rebuilds
docs/man/po/manpages.pot + each docs/man/po/manpages-<lang>.po from
scratch.

Two things land in this sweep:

  1. The stale #: source refs flagged in #894 now point at the
     templated masters they actually come from. All 297 #: lines
     read "*.1.in" (none of the old "*.1" form remain) -- in sync
     with po4a.config since the 5c9781e + a89d1e3 rename.

  2. The new msgids introduced by the man-page audit fixes in #900
     (--configure-autostart, --force-zlib on amulecmd/amuleweb,
     --disable-fatal/--enable-stdin on amulegui, the -t/--category
     formatting + grammar / FILES section / GD-support / optional-arg
     clarifications) get extracted into manpages.pot and turn up as
     untranslated entries in each manpages-<lang>.po.

The rest of the diff is line-wrap reflow -- po4a 0.74 wraps long
strings differently than the version that last touched the
catalogs, so msgid/msgstr bodies move across columns. No msgid
content was lost and no existing translation was discarded; fuzzy
markers grow only on entries whose source string genuinely changed
because of the #900 audit fixes.

Refs amule-org/amule-org.github.io#4 (pre-3.0.0 housekeeping)
Closes #894.

Picks up the entries left untranslated or marked fuzzy after the
preceding pot/po regen pass:

* po/it.po -- 14 untranslated installer-string entries (extracted
  from packaging/windows/installer_strings.c via #899) and 4 fuzzy
  entries:
  - 'Uninstall' had been msgmerge-mapped to the existing 'Installa'
    translation (wrong direction); fixed to 'Disinstalla'.
  - 'aMule application files (required).' had been msgmerge-mapped to
    the existing 'Integrazione di aMule non riuscita' translation
    (unrelated); fixed to the literal 'File dell'applicazione aMule
    (obbligatori).'.
  - 'Start aMule when I log in' kept the substantively correct
    existing translation, just unfuzzied.
  - The web-server-startup message updated to reference the
    -DBUILD_WEBSERVER=YES CMake flag we use today.

* docs/man/po/manpages-it.po -- 9 untranslated entries (the new
  --configure-autostart / --force-zlib / -t/--category / -o-and-p
  optional-arg / GD-support / aMule-online-sign FILES entries from
  the #900 audit fixes) and 5 fuzzy entries on synopsis lines and
  the 'all link found' grammar fix.

Refs amule-org/amule-org.github.io#4.

…ule-project#912)

Extends existing categories (preferring extensions over new lines):
- Performance/Upload: amule-project#898 SlotAllocation default raised.
- Networking & Discovery: wire-parser hardening list extended with
  amule-project#879/amule-project#882/amule-project#890/amule-project#886; new amuleweb security hardening bullet
  consolidating ngosang's amule-project#869-amule-project#874 triage (all landed in amule-project#875);
  amulegui list extended with amule-project#857; shared-folder watcher extended
  with amule-project#858.
- Packaging: Windows installer i18n line extended with amule-project#899.
- Internals & Refactoring: new docs-polish + code-quality bullets
  covering amule-project#851/amule-project#855/amule-project#862/amule-project#888/amule-project#900/amule-project#866/amule-project#867/amule-project#895 and amule-project#909/amule-project#910/amule-project#912.
- Translations: new pre-release final-wave bullet covering amule-project#847/amule-project#856/
  amule-project#891/amule-project#908/amule-project#860/amule-project#904/amule-project#859/amule-project#863/amule-project#861/amule-project#880/amule-project#911/amule-project#901/amule-project#902/amule-project#889/amule-project#868/amule-project#853.
- Bug Fixes & Stability: amule-project#850/amule-project#854/amule-project#878/amule-project#906.
- CI: ccache wiring (amule-project#892, amule-project#903) + CodeQL binutils-dev (amule-project#907).

Contributors footer gains mifritscher and nguyenhoangminhhieu2004-gif
(both first-time contributors).

PR index extended through amule-project#912.

Extends existing categories (preferring extensions over new lines):
- Performance/Upload: #898 SlotAllocation default raised.
- Networking & Discovery: wire-parser hardening list extended with
  #879/#882/#890/#886; new amuleweb security hardening bullet
  consolidating ngosang's #869-#874 triage (all landed in #875);
  amulegui list extended with #857; shared-folder watcher extended
  with #858.
- Packaging: Windows installer i18n line extended with #899.
- Internals & Refactoring: new docs-polish + code-quality bullets
  covering #851/#855/#862/#888/#900/#866/#867/#895 and #909/#910/#912.
- Translations: new pre-release final-wave bullet covering #847/#856/
  #891/#908/#860/#904/#859/#863/#861/#880/#911/#901/#902/#889/#868/#853.
- Bug Fixes & Stability: #850/#854/#878/#906.
- CI: ccache wiring (#892, #903) + CodeQL binutils-dev (#907).

Contributors footer gains mifritscher and nguyenhoangminhhieu2004-gif
(both first-time contributors).

PR index extended through #912.