Fix apache horizon permissions on Ubuntu 13.10

Fixes bug 1241574.

Change-Id: If6c30874267a6bf30c114146f83b2d3220f32c1a
Add FORCE_CONFIG_DRIVE and make it the default

Adds a new FORCE_CONFIG_DRIVE option to lib/nova which
is by default enabled. Using config drive should speed
things up a bit and is a more likely production default
instead of file injection.

Change-Id: I2388ef0df12a6289b619bfaf30cb952fcc48ef41
Remove docker exercise

No other hypervisor has a dedicated exercise, docker should be
tested just by testing the nova APIs, not on it's own.

Change-Id: Ifc788815380e8502449171410dea8260786a1e79
Turn off Nova firewall driver when using Neutron

As referenced in the OpenStack documentation, the firewall_driver in
nova.conf should be set to nova.virt.firewall.NoopFirewallDriver, "so
that nova-compute does not perform iptables-based filtering itself".

Without this change, the driver gets set to
nova.virt.libvirt.firewall.IptablesFirewallDriver, which seems to
make networking unusable.

Change-Id: Id9cce0f5f4efe719683aaf3284b128188b61b919
Closes-bug: #1246888
Set keystone.conf to mode 0600

Set keystone.conf readable only by owner
Fixes CVE-2013-1977

Fixed bug: 1168252

Change-Id: Idd13b7a58e257565052c54f72c65d8dceb23f27a
Merge "Fix apache horizon permissions on Ubuntu 13.10"
Merge "Set keystone.conf to mode 0600"
Merge "Turn off Nova firewall driver when using Neutron"
Merge "Add FORCE_CONFIG_DRIVE and make it the default"
Merge "Remove docker exercise"