If we're using GTK+ 2.21.8 (where gtk_dialog_set_has_separator() is
deprecated but the property is still present and defaults to TRUE), we
still need to set the property to FALSE. So instead use g_object_set()
up through GTK+ 2.90.6, after which the property itself is gone.
Unfortunately the default value for this property is TRUE (bzzt, WRONG!)
so we can't just remove the function outright until we require GTK+ 2.22.
It was deprecated in GTK+ 2.21.8.
There's too much ancient, crufty code there that we can't realistically
support anymore. A workaround for those poor users still on 1.x is to
upgrade to some 2.x release first, then upgrade again to 3.x. An error
dialog explaining this will be shown at startup.
Replace the EVO_EXPRESS environment variable with an --express command
line option. (Note, this adds a new translatable string for --help.)
Add an EUIManager class with an "express-mode" property and custom load
functions that use our new "express" preprocessor. This replaces the UI
manager functions in e-utils.c.
(Also going to see if I can get GTK+ to add an "add_ui_from_string"
method to GtkUIManagerClass that we can override. Then we could just
call gtk_ui_manager_add_ui_from_string() and the preprocessor would
automatically do its thing and chain up.)
Add an "express-mode" read-only GObject property to EShell.
Add e_shell_configure_ui_manager() to e-shell-utils.c. For now this
just creates a one-way property binding:
EShell:express-mode -> EUIManager:express-mode
Call this immediately after e_ui_manager_new(). (EUIManager can't do
this itself because it lives too low in the dependency hierarchy and
doesn't know about EShell.)
/apps/evolution/mail/display/show_preview
/apps/evolution/mail/display/thread_list
These keys are no longer needed since we're storing the settings by
folder now in ~/.evolution/mail/config/state. To simplify things we use
hard-coded defaults: TRUE for PreviewVisible, FALSE for GroupByThreads.
