Update igb_avb driver to track latest supported igb_stable on sourceforge (4.2.16).
+ Startup script to illustrate how to steer OS traffic to non-AVB queues
+ added pci.updates and igb_avb.7 manpage
Remainder of files to be updated to align with verion 4.2.16. Regression tested
on Fedora 18 x86_64.

Also fix heap corruption issue when calling igb_reset() in usermode library.