Qemu emulator requires at least 128MB of memory to boot on ppc64

The default nano and micro flavors need more memory to boot on
ppc64. New flavors are 128MB and 256MB, respectively.
Trailing spaces removed, again.

Change-Id: Ic6740bda959754380982e67f753876dc6d984685
Added keystone auth port to the nova config

Added the $KEYSTONE_AUTH_PORT to the keystone_authtoken
section of the create_nova_conf function.
This is required as without it nova doesn't communicate
to the keystone server. Generating an "Unauthorised (HTTP 401)"
page when acceesing /admin/.

Change-Id: Ibf4d9d1c21081a1e3de4ea765f4db6de5fbdb237
Merge "Qemu emulator requires at least 128MB of memory to boot on ppc64"
Merge "Added keystone auth port to the nova config"