switch to use ceilometer specific connections

in Juno/Kilo, we added ceilometer purpose specific connections for:
metering, alarms, event. Rather than piggyback off oslo.db's
connection option (which gives misleading sql help message), we
should use Ceilometer specific connections.

Change-Id: I7703b73708a5807fb8de89fbb828f06b488acf69
Install bash completion for glanceclient

This installs the new bash-complete file in the standard location,
alongside the rest of the completion files:

    /etc/bash_completion.d/glance.bash_completion

Change-Id: I2944c47d857f7125f370b2b1ee041d1282db09c5
ovs_base: Fix debug-agent config for Q_USE_PROVIDERNET_FOR_PUBLIC=True

Set up external_network_bridge correctly for the case
of Q_USE_PROVIDERNET_FOR_PUBLIC=True.

This is an oversight in commit 6a633fd024347aade777ecd6545fa3efde5a959c.

Closes-Bug: #1394826
Change-Id: I33f0fe15bafb7071d8a09899d636471f49031606
IPA Ramdisk should log to console in devstack

Setting these kernel command line parameters will have journald log
everything to the console, which means it'll end up in the appropriate
log in the ironic-bm-logs/ directory.

Change-Id: I0f4c79436c4856a5aa72f00f1ac8c2ed534b702e
Merge "switch to use ceilometer specific connections"
Merge "Install bash completion for glanceclient"
Merge "IPA Ramdisk should log to console in devstack"
Merge "ovs_base: Fix debug-agent config for Q_USE_PROVIDERNET_FOR_PUBLIC=True"
Merge branch 'master' of https://github.com/openstack-dev/devstack