org.gnome.Geary.yaml: Add Pulse Audio and FDO sound theme

Closes #752

See merge request !476

Former fixes Sent Mail plugin from being able to play, latter provides
it with something to play.

Fixes #752

Geary.Db.Statement: Fix poorly worded signal name

Closes #779

See merge request !472

Application.Client: Update copyright year

Closes #777

See merge request !473

Install client library in private lib sub-directory

Closes #775

See merge request !470

Allow explicit setting of revision string

See merge request !471

Fixes #777

Remove empty trash/spam menu items

Closes #424

See merge request !448

Fixes #779

This lets a packager ensure that the binary object built from an
unpacked source tarball is identical to the binary object created from
a live git tree.

I hope to use it in debian with something like -Drevno=debian/3.36.1-1
during the meson configuration, so that the help dialog box and the
bug reporting logs can identify the specific build.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>

Use Geary's private lib sub-directory so that the library won't be found
on the global library search path. Version the library name to avoid
clashes. Update the binary's rpath on install so it can find the lib
still.

Fixes #775

HTML not wrapped on send

Closes #771

See merge request !468

Composer.Widget: Do not set double dot after 'From' label

See merge request !467

When attaching body parts to a message from a composed email, don't
re-use the transfer encoding used from the plain part for the HTML part,
since the latter may be different if e.g. the HTML contains no line
breaks and hence is a single long line.

See #771

By not closing/flushing the buffer, ::get_best_charset and
::get_best_encoding were not including the last line of the buffer, and
missing single very long lines when guessing the encoding.

Fixes #771

We do not set double dots after the other labels so remove it for the
'From' label as well.
Therefore, adjust the .ui file to have the right label (with the
mnemonic underscore) and remove the adjustment of it in code.

Geary.RFC822.Message: Fix critical when saving draft

See merge request !465

Message-Id will be null when saving a draft, don't assume it's not.

Focus message body on reply

Closes #671

See merge request !463

Any kind of inline composer will be a reply, so always focus the message
body when grabbing the focus.

See #671

If scrolling and a composer is present, check to see if is reasonable
to have the key press passed to that instead so that Up/Down moves
focus as usual.

Fixes #671

Allows it to be easily found when needed.

Building the client library as a shared library breaks the locally
copied geary binary, which was one of the last reasons to keep the
dev Makefile around.

So remove it.

Geary.Util.Source: Fix GLib `old_val > 0` critical

Closes #650

See merge request !455

src/client/meson.build: Build client lib as a shared lib

Closes #747

See merge request !460

Build the client library as a shared lib and install it, so that client
GObjects aren't linked in twice to plugin libraries - once via the
client and once via the plugin lib.

Fixes #747

If a source object prints a log message from a destructor the
engine's logging hander will attempt to ref it despite the object
bing finalised, resulting in the critical.

Fixes #650

Geary.RFC822.Message: Fix Message-Id header not being set

Closes #758

See merge request !456

The port to GMime 3 missed setting the Message-Id header on the
underlying GMime Message object when constructing a message, from a
ComposedEmail, so this was not getting set on outoging email.

Fixes #758

.gitlab-ci.yml: Preconfigure Ubuntu tzdata package

See merge request !457