Fix links in header and broken side-bar nav link "Technical documentation"
I removed the latter link for now.

Closes-Issue: https://github.com/rackerlabs/developer.rackspace.com/issues/441

Change-Id: I51667d3f6821d61a1789ab44ced87b36a112b71d
author: diane fleming
Merge "Fix links in header and broken side-bar nav link "Technical documentation" I removed the latter link for now."