Don't renumber windows in tmux.
Install Vundle when loading Vim if it's not already installed.

The install.sh script no longer installs Vundle or runs :BundleInstall.

Based on a blog post by Erik Zaadi:

http://erikzaadi.com/2012/03/19/auto-installing-vundle-from-your-vimrc
Fresh handles this symlink in it's install script.