Added Deft support

Deft[1] is an Emacs mode for quickly browsing, filtering, and editing
directories of plain text notes, inspired by Notational Velocity[2].

This would help in find a scheme for take note, share them and make them
available on the cloud and other devices[3].

[1] http://jblevins.org/projects/deft/
[2] http://notational.net/
[3] http://mfcabrera.com/geeky/2014/04/07/Taking-notes-with-style.blog.org/