* Strip down setupEmacs() function. We only set f12 as a global key
to start Macaulay2 inside Emacs. This also strips (load "M2-init")
from a user's existing .emacs-Macaulay2 file, which would cause
errors if they haven't installed elpa-macaulay2. We also warn the
user if elpa-macaulay2 isn't installed.
* Fix path to M2-emacs-help.txt in documentation.