Included CLI procedure for creating a router

Updated the 'Create and manage networks' section in the CLI chapter of End User
guide to include procedure for creating a router.
Closes-Bug: #1280925

Change-Id: I5061681804c3188583e22a1283378e494f2f8980
Minor edits to the install guide

- Removed revision history grizzly and prior
- Edit for Neutron/OpenStack Networking

Change-Id: I4273eef0699056f10a75abe906ec2220edc7248b
Merge "Minor edits to the install guide"
Merge "Included CLI procedure for creating a router"