Update install script

I'm a jackass!!!

- When you use someone elses script, you should really study it and
  understand what is going on.  The .bash_profile that @necolas wrote
  sources files and since my /bin/clone script is not enclosed in a
  function style block it is automatically run when sourced.
- Update broken logic on lib/pip as I want to make sure that I only
  upgrade python if its using my freshly installed brew version
- Update help file with correct username in the URL

Issue: #9