1) Update Ubuntu wsgi location
The location of the app.wsgi has changed from /usr/share/aodh-common to
/usr/share/aodh.
2) Install packages before apache
The apache module cleans up the vhost configurations and in Ubuntu the
packaging is include a default configuration. To ensure this file is
removed at the right time, we should make sure we install our software
before doing the apache configuration when running under apache.
Change-Id: I272c03f19d7182c4a731a1ef0fcbc2b9c6ca0b97
Closes-Bug: #1657293
Closes-Bug: #1657847
093eeb5ecf