cleanup and missing import

Add 2.2.2 contributors

2.2.1 -> 2.2.2b1

2.2.1rc1 -> 2.2.1

2.2.0rc1 -> 2.2.0

2.1.0p1 -> 2.1.0p2, and update copyright to 2014 (fwiw)

Fix typo

pass code check

Update oftest repo location


Fixes Issue 41: mininet#41

Reported-by: sublinhado on GitHub