* Mailer.idl: rename this from "Mail.idl" so that the generated .h
file won't overwrite "mail.h" on Mac OS X. Remove some
never-implemented IDL and add MailConfig_removeAccount.
* Makefile.am: Update for IDL rename
* mail-config.c: #include Mailer.h, not Mail.h
(impl_GNOME_Evolution_MailConfig_removeAccount): Implement.
* folder-info.c: #include Mailer.h, not Mail.h
* message-list.c: Remove Mail.h include.
svn path=/trunk/; revision=18060
