Add install instructions for python-requests

The biggest complaint about this script is that it uses python-requests,
which causes an issue for people who don't have root, and don't know how
to install a local python module.
Add install instructions for python-request to be installed in a local
directory.

The root install instructions are added for completeness.
Merge pull request #3 from cybojenix/master

Add install instructions for python-requests