Log Message:
neomutt: update to 20200313.

2020-03-13  Richard Russon  <rich@flatcap.org>
* Features
  - UI: add number of old messages to sidebar_format
  - UI: support ISO 8601 calendar date
  - UI: fix commands that don’t need to have a non-empty mailbox to be valid
  - PGP: inform about successful decryption of inline PGP messages
  - PGP: try to infer the signing key from the From address
  - PGP: enable GPGMe by default
  - Notmuch: use query as name for vfolder-from-query
  - IMAP: add network traffic compression (COMPRESS=DEFLATE, RFC4978)
  - Header cache: add support for generic header cache compression
* Bug Fixes
  - Fix uncollapse_jump
  - Only try to perform entire-thread on maildir/mh mailboxes
  - Fix crash in pager
  - Avoid logging single new lines at the end of header fields
  - Fix listing mailboxes
  - Do not recurse a non-threaded message
  - Fix initial window order
  - Fix leaks on IMAP error paths
  - Notmuch: compose(attach-message): support notmuch backend
  - Fix IMAP flag comparison code
  - Fix $move for IMAP mailboxes
  - Maildir: maildir_mbox_check_stats should only update mailbox stats if requested
  - Fix unmailboxes for virtual mailboxes
  - Maildir: sanitize filename before hashing
  - OAuth: if 'login' name isn't available use 'user'
  - Add error message on failed encryption
  - Fix a bunch of crashes
  - Force C locale for email date
  - Abort if run without a terminal
* Changed Config
  - `$crypt_use_gpgme`                         - Now defaults to 'yes' (enabled)
  - `$abort_backspace`                         - Hitting backspace against an \ 
empty prompt aborts the prompt
  - `$abort_key`                               - String representation of key to \ 
abort prompts
  - `$arrow_string`                            - Use an custom string for \ 
arrow_cursor
  - `$crypt_opportunistic_encrypt_strong_keys` - Enable encryption only when \ 
strong a key is available
  - `$header_cache_compress_dictionary`        - Filepath to dictionary for zstd \ 
compression
  - `$header_cache_compress_level`             - Level of compression for method
  - `$header_cache_compress_method`            - Enable generic hcache database \ 
compression
  - `$imap_deflate`                            - Compress network traffic
  - `$smtp_user`                               - Username for the SMTP server
* Translations
  - 100% Lithuanian
  - 81% Spanish
  - 78% Russian
* Build
  - Add libdebug
  - Rename public headers to lib.h
  - Create libcompress for compressed folders code
  - Enable Cirrus CI for FreeBSD
* Code
  - Refactor Windows and Dialogs
  - Lots of code tidying
  - Refactor: mutt_addrlist\_{search,write}
  - Lots of improvements to the Config code
  - Use Buffers more pervasively
  - Unify API function naming
  - Rename library shared headers
  - Refactor libconn gui dependencies
  - Refactor: init.[ch]
  - Refactor config to use subsets
  - Config: add path type
  - Remove backend deps from the connection code
* Upstream
  - Allow ~b ~B ~h patterns in send2-hook
  - Rename smime oppenc mode parameter to get_keys_by_addr()
  - Add $crypt_opportunistic_encrypt_strong_keys config var
  - Fix crash when polling a closed ssl connection
  - Turn off auto-clear outside of autocrypt initialization
  - Add protected-headers="v1" to Content-Type when protecting headers
  - Fix segv in IMAP postponed menu caused by reopen_allow
  - Adding ISO 8601 calendar date
  - Fix $fcc_attach to not prompt in batch mode
  - Convert remaining mutt_encode_path() call to use struct Buffer
  - Fix rendering of replacement_char when Charset_is_utf8
  - Update to latest acutest.h