Major tweaking, re-documenting, and cleanup of the .emacs.
Fix a code typo I mistakenly let `checkdoc' introduce.
Add Homebrewed programs' man pages to the Emacs manpath.
Set up Scheme completion.
More .emacs updates; SLIME/CCL config, and Perlbrewed man pages.
Block focus-grabbing; add some Opera-like keys; rearrange a bit.