The settings library started using an EMailBackend object, but since
it is abstract it can't be instantiated directly. So we use the EShell
to get the mail backend for us instead, after loading the modules.
All this so EMFolderTree can submit EActivity instances for async ops.
You can obtain an EMailSession from an EMailBackend, but not vice versa.
Creates lots of pretty ripples in the mail code, but ultimately reduces
complexity. So it's a code cleanup of sorts.
This thing is kind of a weird hybrid of Anjal and Evolution code anyway.
We should figure out if and where it really belongs in Evolution and get
the Anjal references cleaned up.
This marks the end of unintrusive error dialogs, which were too
unintrusive. We now show errors directly in the main window using
the EAlert / EAlertSink framework.
Global variables in shared libraries are a bad idea. EMailBackend now
owns the MailSession instance, which is actually now EMailSession.
Move the blocking utility functions in mail-tools.c to e-mail-session.c
and add asynchronous variants. Same approach as Camel.
Replace EMailReader.get_shell_backend() with EMailReader.get_backend(),
which returns an EMailBackend. Easier access to the EMailSession.
In GTK+ 2.21.8, the keysym names were renamed from GDK_* to GDK_KEY_*.
I've added backward-compatibility macors to gtk-compat.h, which can be
dumped as soon as we require GTK+ >= 2.22.0.
Convert the "startup-wizard" EPlugin to an EExtension, and fix up the
importing UI a bit (but it still needs a lot more love). Importing
progress is now shown directly in the GtkAssistant window.
Define a new EConfigItem type (E_CONFIG_PAGE_PROGRESS) for creating
progress pages in a GtkAssistant.
Also, change EMAccountEditor semantics slightly: you now have to call
e_config_create_window() manually after creating a new EMAccountEditor
instance. This allows extra EConfigItems (specifications for the window
content) to be added manually before the window is created.
