Merge pull request #13 from capveg/master

Updated submodules/common to HEAD
Add the Open Network Linux Platform repository as a submodule.
Fix typo for ip_forward
Merge pull request #14 from cobracmder/patch-1

Fix typo for ip_forward
Update SupportedHardware.md
Add realpath to required host packages
Reformatted quickstart doc

Reformatted quickstart doc.

Added build hosts and environments section.
Merge pull request #15 from cobracmder/patch-2

Add realpath to required host packages
Latest
Merge pull request #16 from cobracmder/patch-3

Reformatted quickstart doc
Latest.
Revert broken merge until fixed.
Latest.
Updated to ONLP head
Updated PortingGuide with information from ONLP