Replace github.com/dellcloudedge mentions with github.com/crowbar
Merge pull request #88 from vuntz/replace-dellcloudedge

Replace github.com/dellcloudedge mentions with github.com/crowbar
Rebase keystone.conf to Grizzly.

Actually uncomment sql.idle_timeout. The following options where dropped
from keystone.conf: public_host, admin_host, compute_host, min_pool_size,
max_pool_size, pool_timeout. Use default compute_port (8774), the nova
cookbook does the same.
SSL support for native frontend