[PATCH 0/3] emacs: Add possibilities to move to license definition.

[Alex Kost]

As a user can move to a package definition (with "guix edit"), (s)he can
also want to go to a license definition (why not?).  This patchset adds
this possibility in 3 places:

1. As a standalone command (analog of "M-x guix-edit"):

   M-x guix-find-license-definition

   Or maybe it should be called "guix-license-edit" and "guix-edit"
   should be renamed (aliased) to "guix-package-edit"?  Or to
   "guix-find-package-definition"?

   Just to mention, I changed my opinion on the bug#22587¹: now I think
   "edit" is not a good name for displaying a package recipe.

2. As a button to *Guix License Info* buffer (this buffer appears, for
   example, when you press a license button in a *Guix Package Info*
   buffer).

3. As an "e" key in *Guix Licenses* buffer (this buffer appears after
   "M-x guix-licenses").  I bound it to "e" because it is essentially
   the same thing as "edit" for packages, which is bound to "e" in a
   *Guix Package List* buffer.  I don't like "e" key actually, but it is
   for the same "edit" bug.

[PATCH 1/3] emacs: Add 'guix-find-license-definition' command.
[PATCH 2/3] emacs: Add license definition button to License Info.
[PATCH 3/3] emacs: Add "edit" command to a list of licenses.

¹ http://bugs.gnu.org/22587