Made token_format configurable

Fixes: rhbz#975153
Change-Id: Ia679324307d4091f8b8ca98b02ab81760d2b4f8a
Install netns.py dependency

Change-Id: Ic96a0dc00730e6dcbb6b417c34b8d2a71a3f0ea7
Merge "Made token_format configurable"
Merge "Install netns.py dependency"