FIX#4 Increasing the memory with 256Mb from 1024Mb into 1280Mb fixes the...

Slightly to tight memory seems to fail the assignment of the $token variable that results in a problem in the stack.sh executable when it calls glance. Problem was also described here: https://ask.openstack.org/question/2193/devstack-installation-error-on-ubuntu-64/  

Increasing the memory worked also for us here. Tried 2048, 1500 and 1280Gb, Picked the minimum size.