Enable console logging for Ironic baremetal VMs

Logs console output of VMs created for use by Ironic to
$DATA_DIR/ironic/logs. This gives Jenkins something to archive
that will be useful for debugging any deployment ramdisk issue
blocking provisioning.

Change-Id: I7d234a6a13dbe8579f685e46d7712dae497272a5
Re-enable Swift3 middleware support in DevStack

Because *swift* in no more allowed in ENABLED_SERVICES (see
I78222d7ee2ea8a281962129d5bcf06c118469510) swift3 middleware to
swift could not be installed anymore. This patch thighten a check
to allow swift3 (but not swift) in ENABLED_SERVICES.

Change-Id: I194f66ae7e5163e0e6178561b09f55024fdaa607
Merge "Re-enable Swift3 middleware support in DevStack"
Merge "Enable console logging for Ironic baremetal VMs"