Fix wrong compute driver name for Ironic

Change-Id: Ia29e019065476f9884ab3fce4e26fe66700fb02d
Increase in the full path to mkfs.xfs(/sbin/mkfs.xfs).

Xfsprogs package has been installed. This is the cause of the error stack does not have
permission to perform mkfs.xfs command rather mkfs.xfs command in /sbin/
path, stack in order to perform mkfs.xfs must add the full path or use
the sudo command mode.

Fixed bug #1292466

Change-Id: I488133539331b4a0034a2afb4e75665904754245
Swift3 has been moved to stackforge.

Use that URL

Change-Id: Iae1a7068043846294fe208a10a1de23a35f337e0
Add memory usage to dstat output

Adds used, buffers, cache, free values next to the CPU usage.

Change-Id: Ia873e6a5e78413b724464985b253149bc7e9e2d8
Fix is_n-cell-enabled

devstack-gate just adds the n-cell to the list of enabled_services and
devstack does the rest.

Change-Id: I1d7f8d085a5f46078131f0f6f670e929ec63f805
Merge "Add memory usage to dstat output"
Merge "Swift3 has been moved to stackforge."
Merge "Increase in the full path to mkfs.xfs(/sbin/mkfs.xfs)."
Merge "Fix wrong compute driver name for Ironic"
Merge branch 'master' of https://github.com/openstack-dev/devstack