Sync w/ public branch

(Makefile)

 - Fix grep invocation under Solaris
 - add new target, clean-elpa

(bashrc)

 - Set SHELLPAK_VERSION from VERSION file
 - Ignore clear(1) command in bash history

(prompts)

 - Standarize file header.  This file was apparently missed in
   2bafdee6ac[1]

(setup.sh)

 - Add support for backing up $HOME/.emacs

(emacs.d/init.el)

 - Add smart-line-mode
 - Customize font used when run under X-Windows
 - Correct areas where backquotes were used instead of single-quotes
 - Use CSV-Nav[2] mode for editing CSV file
 - Set comment-fille-column to 80 characters
 - Add a yasnippet boiler-plate for SQL files
 - Add support for org-bullets-mode
 - Switch theme to solarized-dark

Miscellany:

 - Remove SHJS and associated fossil-specific configuration.  I've
   switched to the Google Code Prettify[3]
 - Remove googlecode skin.


Footnotes: 
[1]  https://www.fuhrwerks.com/fossil/shellpak/info/2bafdee6ac

[2]  http://www.emacswiki.org/emacs/CsvNav

[3]  https://code.google.com/p/google-code-prettify/
Remove README.md symlink

Since BitBucket doesn't like symlinked README.md files in the main
directory, go back to using README.org.