Pre-install hgtools for RHEL6

See the inline comment; pre-installing this package works around [1]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=924038

Change-Id: Id021b44ac9d8aa28286828ccfd6515b7850bad16
Ensure correct polkit config written for RHEL6

Ensure the correct polkit config is written for RHEL6, or nova-cpu
will fail to start with libvirt permission errors

Change-Id: I871ef4e03157883db15be41222b7338765fbb843
Add saucy support

Add support for "Saucy Salamander"

Change-Id: Ic7dfef2903634b17304243917fa3d8389a93b0c0
Signed-off-by: Chuck Short <chuck.short@canonical.com>
Merge "Pre-install hgtools for RHEL6"
Merge "Ensure correct polkit config written for RHEL6"