Switch to MELPA package repo; attempt to install Emacs 23 package.el support.
Upgrade all packages.
Install google-c-style from MELPA
Get rid of cucumber mode.
Replace coffee-mode, etags-table, markdown-mode, yasnippet from MELPA
Replace pager, php-mode, rhtml-mode, scss-mode from MELPA.
Remove obsolete load paths
Remove the old packages directory and the git-subtree craziness.