This continues turning "example" in a real gnome-shell extension
tutorial, showing how to create GSettings using Convenience and
how to build a simple preference dialog by subclassing GtkGrid
and binding GObject properties to GSettings.
Retrieve Convenience from the extension helper object (Me), and
pass no arguments to initTranslations and getSettings (since the
metadata has all that is required)
Common code for retrieving translations and GSettings schemas has
been factored out into lib/convenience.js, which is part of
every extension installation.
Since that code relies on renames done at zip file creation time,
extensions can no longer be installed with "make install". Instead,
one should create the zip file and install it with the tweak-tool.
There is also a bash script, local-install.sh, that will install
everything in zip-files.
Also, since the GSettingsSchemaSource code is not yet in a stable
GLib release, extensions using GSettings have seen their stable
shell version removed.
Introduce a translation domain, gnome-shell-extensions, and use it
in extensions that have user-facing strings, instead of abusing
of translations provided by gnome-shell.
Also includes an example translation for italian, and bump the
required version for xrandr-indicator.
Depends on GNOME bug 621017.
