NEWS: Dropped old 'Reply to sender' section

'Reply to sender' section was 0.12 news which was accidentally
duplicated in 0.13 news
NEWS: Changed 0.13 release date in NEWS file to 2012-05-15
NEWS: Insert markdown formatting commands in 0.13 section text

NEWS entries in section 0.13 is brought consistent with rest of the
NEWS file.
NEWS: Capitalized go bindings changes title

Align 'Go bindings changes' title capitalization to rest of the file
debian: fix typo in changelog.

the path for NEWS was wrong
(cherry picked from commit b9520ef033ea9ae54507f94f7258641a6a1ad2e6)
emacs: use 'gnus-decoded in notmuch-mm-display-part-inline ()

When mail message is read from emacs, the message structure
obtained may contain parts which have content included
(`text/plain` for example) and other parts where content is not
included (`text/html` for example).

In case content is included, the string is already available in
emacs' internal format and therefore mm-... functions should not
attempt to do further decoding for the data in temp buffer
provided for it.

Currently when reply buffer is created,
notmuch-mm-display-part-inline () is used to provided quoted reply
content. This change makes the mm-... functions called by it use
'gnus-decoded as charset whenever the content is already available.

File .../emacs-23.3/lisp/gnus/mm-uu.el mentions:
"`gnus-decoded' is a fake charset, which means no further decoding."
lib: Make directory document creation optional for _notmuch_directory_create

Previously this function would create directory documents if they
didn't exist.  As a result, it could only be used on writable
databases.  This adds an argument to make creation optional and to
make this function work on read-only databases.  We use a flag
argument to avoid a bare boolean and to permit future expansion.

Both callers have been updated, but currently retain the old behavior.
We'll take advantage of the new argument in the following patches.
lib: Perform the same transformation to _notmuch_database_find_directory_id

Now _notmuch_database_find_directory_id takes a flags argument, which
it passes through to _notmuch_directory_create and can indicate if the
directory does not exist.  Again, callers have been updated, but
retain their original behavior.
lib: Perform the same transformation to _notmuch_database_filename_to_direntry

Now _notmuch_database_filename_to_direntry takes a flags argument and
can indicate if the necessary directory documents do not exist.
Again, callers have been updated, but retain their original behavior.
lib: Make notmuch_database_get_directory return NULL if the directory is not found

Using the new support from _notmuch_directory_create, this makes
notmuch_database_get_directory a read-only operation that simply
returns the directory object if it exists or NULL otherwise.  This
also means that notmuch_database_get_directory can work on read-only
databases.

This change breaks the directory mtime workaround in notmuch-new.c by
fixing the exact issue it was working around.  This permits mtime
update races to prevent scans of changed directories, which
non-deterministically breaks a few tests.  The next patch fixes this.
new: Remove workaround for detecting newly created directory objects

Previously, notmuch_database_get_directory did not indicate whether or
not the returned directory object was newly created, which required a
workaround to distinguish newly created directory objects with no
child messages from directory objects that had no mtime set but did
have child messages.  Now that notmuch_database_get_directory
distinguishes whether or not the directory object exists in the
database, this workaround is no longer necessary.
python: Update Database.get_directory documentation

notmuch_database_get_directory no longer returns an error for
read-only databases, so remove ReadOnlyDatabaseError from the list of
get_directory exceptions.
lib: Make notmuch_database_find_message_by_filename not crash on read-only databases

Previously, _notmuch_database_filename_to_direntry would abort with an
internal error when called on a read-only database.  Now that creating
the directory document is optional,
notmuch_database_find_message_by_filename can disable directory
document creation (as it should) and, as a result, not abort on
read-only databases.
python: Remove find_message_by_filename workaround

Now that notmuch_database_find_message_by_filename works on read-only
databases, remove the workaround that disabled it on read-write
databases.

This also adds a regression test for find_message_by_filename.
lib: Don't needlessly create directory docs in _notmuch_message_remove_filename

Previously, if passed a filename with a directory that did not exist
in the database, _notmuch_message_remove_filename would needlessly
create that directory document.  Fix it so that doesn't happen.
cli: add user address matching helpers for notmuch reply

Add a multi-purpose address_match() function for matching strings
against user's configured primary and other email addresses. Add thin
wrappers user_address_in_string() and string_in_user_address() for
ease of use, and also convert existing address_is_users() to wrapper
for the same.

No functional changes.

Signed-off-by: Jani Nikula <jani@nikula.org>
cli: clean up user address matching code in guess_from_received_header()

Get rid of user address matching code duplication in
guess_from_received_header() by using the new address matching
helpers.

No functional changes.

Signed-off-by: Jani Nikula <jani@nikula.org>
Merge branch 'release'

merge 0.13.1 bugfix patches back to master, fixes for emacs reply and
spurious directory document creation.
test: Test notmuch new with a broken symlink
new: Centralize file type stat-ing logic

This moves our logic to get a file's type into one function.  This has
several benefits: we can support OSes and file systems that do not
provide dirent.d_type or always return DT_UNKNOWN, complex
symlink-handling logic has been replaced by a simple stat fall-through
in one place, and the error message for un-stat-able file is more
accurate (previously, the error always mentioned directories, even
though a broken symlink is not a directory).