[Evolution-hackers] Mail library use outside of the mailer

[Not Zed]

This was mentioned last week, but these must be fixed, at a priority,
before the use of other mail code creeps into the calendar or anywhere
else.

Nothing from mail/ or composer/ may be used anywhere outside of mail/ or
composer/ unless it is by a plugin.  These are not libraries, they are
part of the mail component which isn't guaranteed to even exist when
evolution is running.

notzed at lostzed:~/gnome2/head/evolution/calendar> find . -name '*.c' | xargs grep em_pop
./gui/dialogs/comp-editor.c:            emp = em_popup_new("org.gnome.evolution.mail.editor.popup.drop");
./gui/dialogs/cal-attachment-bar.c:     emp = em_popup_new("org.gnome.evolution.mail.composer.attachmentbar.popup");
./gui/dialogs/cal-attachment-bar.c:     t = em_popup_target_new_attachments(emp, attachments);