Updated my Yasnippet installation to latest.

The yasnippet-bundle was old and causing me grief when I didn't even
realize it. Now, my world is rockin'.
Upgrade server setup with screen

And more features for tmux, and let's get version 24 of emacs when it is
available on Ubuntu, and ...
Now have a git add all alias

That works with the later changes to git add.
Using Yasnippet to expand abbreviations.

Not sure if I should be using yasnippet for simple abbreviation
expansion, but I've got it working, so...
Getting this to work with CentOS too.