Incremental autocomplete.
The modified code is from: http://mimosa-pudica.net/zsh-incremental.html
Ignore local changes after installation
Added 'pablo' theme
Merge branch 'origin/Themes'
Improved startup time considerably. Note: compinit should be call only once.
http://blog.patshead.com/2011/04/improve-your-oh-my-zsh-startup-time-maybe.html
Merge branch 'origin/incremental_autocompletation'