Retry rabbitmq password change

Due to the bug referenced below, on Fedora it is possible for
the rabbitmq password change to fail the first time rabbitmq is
started.  This change adds a retry loop to avoid the problem in
devstack.  One retry should be enough in most (all?) cases, but
this will retry up to ten times just to be safe.

Note that just retrying the password change is not enough.  The
rabbitmq-server service must be restarted as well.

Change-Id: I403dcd503aa8e74e2ba6312a0decf0d4fd0d8795
bz: https://bugzilla.redhat.com/show_bug.cgi?id=1059028
Install libguestfs for nova-compute on Ubuntu

We were already installing this for n-cpu on rpm distros, but not
Ubuntu.  Install it so that nova-compute can use it for file injection,
which is the preferred method over nbd.

Set CONF.libvirt.inject_partition to -1.  This enables using libguestfs to
determine the proper partition to inject into.

Don't bother trying to load the nbd kernel module anymore.  It won't be used
since we know always expect libguestfs to be installed.

Change-Id: Ifa9d95bf759f1dad8685590a2df242d852dd2cb0
Make MySQL query logging optional

* lib/databases/mysql: Wrap query log configuration in a check for a
ENABLE_QUERY_LOGGING variable.

* stackrc: Add the DATABASE_QUERY_LOGGING variable defaulted to True.

Change-Id: Iddf8538ad0a1e36e2c6944dc70315984026c8245
Pipeline filter is 'authtoken' and not 'tokenauth'

The pipeline fileter in the api-paste.ini for the keystone
middleware was renamed to 'authtoken'. Trove install is not
able to authenticate against keystone unless this is renamed

Change-Id: I6f912d29c143b3acbc43da222cf8b4c3fafb2c8d
Merge "Install libguestfs for nova-compute on Ubuntu"
LDAP root DN creation fails

When keystone is configured to set up an LDAP server to use as
it's identity backend, the creation of the root DN fails.  The
problem is that one of the mods in the modify operation that sets
up the root DN is incorrect, which causes the entire modify
operation to fail.  The incorrect mod is attempting to configure
some attribute indexes, but one of the attributes it specifies is
undefined.  This patch removes the undefined attribute from the
template that is used to create the modify operation.

Change-Id: I413587130c64ca4f5f467b2ea1c0ab12867999ce
Closes-Bug: 1275158
Merge "Pipeline filter is 'authtoken' and not 'tokenauth'"
Merge "Retry rabbitmq password change"
Merge "Make MySQL query logging optional"
Merge "LDAP root DN creation fails"
use ext4 for guest default ephemeral

this isn't upstream default because of compatibility questions
with really old host on providers. However there is no reason not
to do it in devstack.

Change-Id: I6438c0efb297cfa5d3dbb5f00701b24f01c39d14
Merge "use ext4 for guest default ephemeral"
Merge branch 'master' of https://github.com/openstack-dev/devstack