notmuch.el: Rename from notmuch-mode.el to notmuch.el Also add the copyright and licensing blurb.
notmuch-mode: Add an actualy notmuch-search-mode as well Doesn't really do anything so far other than mark the buffer read- only. This does have the benefit of giving us our own name rather than "Compilation" for the mode.
The very beginnings of an emacs mode for notmuch in notmuch-mode.el. As expected, there's not much done here yet---it simply displays the output of "notmuch search" in a new window.