Overhauling project README.md

Cleaning up documentation and adding new Cookbook examples.
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Merge pull request #55 from sts/patch-1

Documentation Update
better dependencies
Merge pull request #56 from velzi/master

better dependencies
Merge pull request #57 from sts/master

Fixing Cisco ASA models