Add element to install memcached

Simple element to install and run memcached

Change-Id: I4431fc6efc046b30cf53e2d6b4dbd9e4e7315242
Use the neutron upstream api-paste.ini config.

We no longer need to carry this file in the tripleO element.
We can just use the upstream version.

Also, removes a duplicated auth_protocol line in the neutron.conf
file.

Change-Id: I674280b9ad49a97037c8c99fd6febebe2fa8abd9
Use the heat upstream api-paste.ini config.

We don't need to carry this file in the tripleO element.
We can just use the upstream version.

Change-Id: I1f12d007354005354b20cf3ac5e6125453263e21
Use DIB_INIT_SYSTEM for systemd checks.

Minor additions to b01c73a where we switched over to use
DIB_INIT_SYSTEM instead of a systemd file check.

This commit updates a couple remaining Fedora distro checks to use
to use the dib init system check instead.

Change-Id: Ifc1ed73b23827005cbdba3531e113491f734c9af
Switch novato the upstream api-paste.ini

We had a copy of this file which needed to be maintained by tripleo,
using the upstream version means we should no longer have to maintain
it. In this case the reason for doing this is to enable the nova v3 API.

The tempest tests for the nova v3 api require it to be enabled.

Change-Id: I98583009cd18adda4443ce0b00a584434a4abf81
Merge "Switch novato the upstream api-paste.ini"
Merge "Add element to install memcached"
Merge "Use the heat upstream api-paste.ini config."
Merge "Use the neutron upstream api-paste.ini config."
Merge "Use DIB_INIT_SYSTEM for systemd checks."