fix tox default env list

Change-Id: I44d79475531931a881aac79a734b3a857957b2fe
fix flake8 issues

Change-Id: I8e3a6bbb4a78418ae64383e86861a59b0a789b69
Original implementation of create_floatingip

Bring in the original implementation of create_floatingip
from neutron.

Change-Id: I86561807251a338c71c4f3d39156a15fb740d14c
Look for floatingips on configured subnets

Define a new configuration option to list the subnets where
floatingips should be allocated, and use those subnets instead
of all of the subnets on the external network.

Change-Id: Ida1dbd9e463deb36cf3249deaad24e93f49bb575
pep8 fixes

Change-Id: Ie2aceecfae1cc7012898d6c164c988a9670fd393
Merge pull request #33 from dhellmann/explicit-subnet-floating-ip

Look for floatingips on configured subnets