call for NEWS entries for 0.31

[David Bremner <david@tethera.net>]

Here's a lightly edited output from git shortlog to jog your collective
memories. Please send patches for NEWS for any non-trivial user visible
changes.

David Bremner (125):
      test: add known broken test for error handling on closed database
      lib: catch error from closed db in n_m_get_message_id
      lib: migrate to post Xapian 1.3.4 compact support
      lib: migrate from Xapian ValueRangeProcessor to RangeProcessor
      test: drop upgrade from v1 tests
      lib: add regression test for n_m_get_date; clarify API
      doc: replace use of environment variables with a generated config
      doc: add new python bindings to main documentation tree.
      lib: catch exceptions in n_m_get_flag, provide n_m_get_flag_st
      lib: add notmuch_message_has_maildir_flag_st
      cli/new: replace newly deprecated n_m_has_maildir_flag
      test: add regression test for n_m_maildir_flags_to_tags
      test: add broken test for n_m_remove_all_tags
      lib: handle xapian exception in n_m_remove_all_tags
      lib: fix return value for n_m_reindex
      lib: move deallocation of memory from n_d_close to n_d_destroy
      lib/n_d_get_version: catch exceptions and clarify the API
      lib: convert relative filenames to absolute in n_d_index_file
      lib: replace use of static_cast for writable databases
      build: upload html docs as part of release process
      lib: return NULL from n_d_get_default_indexopts on error
      lib: catch exceptions in n_directory_get_child_directories
      lib: catch exceptions in n_directory_get_child_files
      lib: fix return value for n_directory_delete

Jonas Bernoulli (38):
      test: Deal with Emacs 27 switching to lexical scope by default
      test: Remove misguided emacs testing utilities
      test: Explicitly state that we want to sign with sender
      emacs: Extend face to window edge again
      emacs: Fix some function declarations
      emacs: notmuch-poll: Let the user know we are polling
      emacs: Improve doc-strings
      emacs: Autoload notmuch-jump-search only once
      emacs: Autoload notmuch-jump using an autoload cookie
      emacs: Use cl-incf where appropriate
      emacs: Remove notmuch-setq-local
      emacs: Remove notmuch-read-char-choice
      emacs: Drop old advices that were only need for Emacs 23
      emacs: Do not abuse advice to monkey patch while testing
      emacs: Use new advice mechanism do advice mm-shr


Jonas Witschel (1):
      doc: make gzipped man pages reproducible

Sean Whitton (2):
      emacs: notmuch-search: avoid wiping out buffer-local variables
      emacs: Use pop-to-buffer-same-window rather than switch-to-buffer

Teemu Likonen (3):
      Emacs: Ensure left-to-right display for message headers
      Emacs: Indent first header line only when indentation is turned on

William Casarin (3):
      emacs/tree: introduce notmuch-tree-parent-buffer variable
      emacs/tree: enable moving to next thread in search results
      emacs/tree: add notmuch-tree-archive-thread-then-next

Đoàn Trần Công Danh (3):
      configure: check for pytest with python -m pytest
      configure: drop check for default xapian backend
      T355: specify hash algorithm explicitly\r