Change F12 bindings to use org mode functions for GTD.
Change default font size to 11pt, and enable sRGB.
Make right cmd key super.
GTD with org mode; revert to keeping elpa, ask to update; slime issues

Main change is that I'm now using org mode for my GTD setup. This configuration
is changing rapidly though.

Elpa (GNU repo) is back to being used, in addition to Melpa, and Emacs asks if
you want to check for new packaages before doing so.

After restarting Emacs with the current version of Slime, I noticed issues with
it not finding the hyperspec in the lib directory, so have had to temporarily
comment out several slime, common lisp-related lines.
Load (non-compiled) cjp-library, as well as private file sources.
Remove gtd.el from repo --- to be tracked in another repo.

(Now using org mode for GTD setup, undecided if it should be split into
a new gtd.el.)