Moved Create Provider method

Moved the "Create Provider" step to the authentication sample and
removed that method from the other examples.
Merge pull request #453 from DonSchenck/cloud-databases

Moved Create Provider method
Merge pull request #452 from ycombinator/redirect-old-blog-links

Redirect old blog links
Report the minimum version of Ansible.
Merge pull request #455 from rackerlabs/min-version

Report the minimum required version of Ansible in the README.
Adding requirements for node.js

- Fixes #407
Merge pull request #457 from rackerlabs/gh-407

Adding requirements for node.js
Added Google Analytics and Core Metrics from old site

Copied code verbatim from

https://github.com/rackerlabs/devsite/blob/master/source/index.html#L1106-1130
Adding back Code of Conduct URL field.
Merge pull request #463 from ycombinator/code-of-conduct

Adding back Code of Conduct URL field
Adding sign-up button to header

- Fixes #464
Merge pull request #467 from rackerlabs/gh-464

Adding sign-up button to header
Adding code samples for node.js databases
Merge pull request #468 from rackerlabs/cloud-db-nodejs

Adding code samples for node.js databases
Forgot to remove old code.