Update to latest vundle.  Add zsh-syntax-highlighting.
Major updates.  Don't use zprezto any longer and copied out what I
wanted to keep.
I ran into too many zsh hangs, slow startups, and slow completions.
This is deliberately copied set of configurations.
Remove unused alias file to avoid confusion with the system/alias.zsh
file.
Minor configuration option updates.
Brett's customizations to make it slightly less awesome.