[balsa] (57 commits) Non-fast-forward update to branch port-to-pcre2

[Peter Bloomfield <peterb src gnome org>]

The branch 'port-to-pcre2' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  791d015... regex: PCRE2 replacements for GRegex functions
  233220b... Build tools: Add LibBalsaRegex
  040472a... libbalsa: Error domain for LibBalsaRegex
  ed60b27... regex: Documentation typo
  151e8e5... Various: Port to LibBalsaRegex
  ace45dc... regex: Use PCRE2's JIT compiler
  bdd49ab... libbalsa: Add LIBBALSA_REGEX_ERROR_JIT_COMPILE
  a232414... gmime-gpgme-signature: Use a custom parser
  af6a328... regex: Drop libbalsa_regex_split()

Commits added to the branch:

  025895a... Update Polish translation (*)
  420127f... mailbox-mbox: Ignore Content-Length headers (*)
  f9909de... Update German translation (*)
  ed2006f... Merge branch 'respect-content-length' into 'master' (*)
  dfbccd4... Updated Spanish translation (*)
  34098e5... Update Turkish translation (*)
  e135af0... mailbox-imap: Handle expunged messages in idle (*)
  a947e42... Merge branch '56-imap-expunge' into 'master' (*)
  fb6aab6... mailbox_imap: Discard expunged seqnos on close (*)
  9878ef9... Updated Danish translation (*)
  1e811ea... Update Turkish translation (*)
  26e554a... imap-handle: check for non-compliant responses (*)
  527ac24... mailbox: Lock destination when copying or moving (*)
  8890d2c... Merge branch 'lock-dest-when-copying' into 'master' (*)
  5ec1c8c... html: WebKit deprecation cleanup (*)
  46665e5... imap-handle: use a flexible array member (*)
  ba8f912... main-window: Do not leak GError (*)
  0b27afd... fix build error on macOS (*)
  7ff35a1... fix crash on systems without GNOME schema files (*)
  4495f54... Remove folder name from enchant include (*)
  72de837... Merge branch 'debian-build-fix' into 'master' (*)
  2bd4b98... fix using static LibBalsaWebKitInfo, enable HTTP cache (*)
  5f20702... drop -ansi compile flag for building libimap (*)
  fa2c837... fix calculation of IMAP cache folder paths (*)
  68d4a8a... implement sender-dependent preferences for HTML messages (# (*)
  08e716b... Update Basque translation (*)
  1c9b590... Update Swedish translation (*)
  b07869a... HTML preferences database: ensure lower-case mail addresses (*)
  c9949e6... Autocrypt: fix faulty error messages (*)
  b6e1ec8... Update Catalan translation (*)
  007666f... Merge branch 'imap-improvements' into 'master' (*)
  320bb8e... Update Ukrainian translation (*)
  83d19cf... Update POTFILES.in (*)
  44223ca... Update Polish translation (*)
  4f82bcf... Update Ukrainian translation (*)
  48926d2... libbalsa-gpgme: Deprecation cleanup (*)
  b9740da... Update Brazilian Portuguese translation (*)
  5a39d2a... Update Swedish translation (*)
  cbdafb7... smtp: fix possible uninitialised memory access (*)
  05fc13d... do not include empty headers in messages (*)
  c790155... fix HTML message creation (*)
  84cef80... mailbox_mh: Use g_byte_array_new() (*)
  d4a59c2... Various: Use g_array_set_size() (*)
  f6b05b4... mailbox_mh: Reduce the scope of two variables (*)
  edc3fd3... mailbox_mh: Reduce the scope of two more variables (*)
  a0e8843... balsa-2.6.3 release (*)
  f931575... mime: No trailing comma in a URL (*)
  3495263... Update Spanish translation (*)
  f303b27... regex: PCRE2 replacements for GRegex functions
  18e7233... Build tools: Add LibBalsaRegex
  4044743... libbalsa: Error domain for LibBalsaRegex
  259d530... regex: Documentation typo
  3d88230... Various: Port to LibBalsaRegex
  538ead4... regex: Use PCRE2's JIT compiler
  9db8e3d... libbalsa: Add LIBBALSA_REGEX_ERROR_JIT_COMPILE
  0ce8a30... gmime-gpgme-signature: Use a custom parser
  a7cce9c... regex: Drop libbalsa_regex_split()

(*) This commit already existed in another branch; no separate mail sent