[MERGE] Replace mail-mode call with compose-mail from GNU Emacs.

[Aaron Bentley]

Aaron Bentley has voted tweak.
Status is now: Conditionally approved
Comment:
Sorry, I need to retract this.  You used tabs for indenting, which is 
not permitted in our source base.  I don't want to change the tabs 
manually, because I can't test whether it works properly after changing 
the tabs.

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C200804020558.m325wq9K006076%40localhost.localdomain%3E