Add mail-mode GNU Emacs mail package as a mail_client option.
Idea and original code by Bojan Nikolic modified in this way:
1. define a different python class EmacsMailMode 2. use mail-mode package instead of message-mode. mail-mode is the default mail mode in GNU Emacs. 3. put the patch as a MIME attachment (see NOTE) 4. add tests as required to fulfil merge strategy requirements
To use this option, just put these lines into ~/.bazaar/bazaar.conf
[DEFAULT] mail_client = emacs-mailmode
NOTE: this will work only for GNU Emacs version from 22.1 and superior. The MIME attachment is handled by etach[1] package. Just put etach.el into your `load-path'. GNU Emacs is not shipped with a simple MIME package thus the need of a simple and reliable alternative (etach does both reading and writing of MIME objects).