Hi Ale,
You are right.
The namespace support is on branch ofed-2-2 and not over ofed-2-1.
So, please use the script you got from us, or I will send you new one that can be used in 2.1 as well.
BTW, ofed-2-2 is going to be released in 3 weeks from now, so i think it is is good idea to use it.
Thanks, Erez