Adding guidance on software installation

Change-Id: Ia415dd7971e94b866c31648dd821df738dd3bba3
Updated nova-network to correct info given

Changed intro text, and final step, as per bug report. Slightly updated
wording and corrected bug number.

Change-Id: I91fa36d6bb1c4713f8d776e5ca71454c839f91e2
backport: havana
Closes-Bug: #1245960
Added instructions for deleting default mysql db to other services

Copied instructions from glance, added to keystone, nova, and heat. Did not
add to neutron, as the chapter layout is significantly different.

Change-Id: If347859a1a38a1353395e4fec58c9f199a72a4eb
backport: havana
Closes-Bug: #1248599
debian/ubuntu don't use chkconfig

backport: havana
Change-Id: I1a1ec97def10a9f2fdcca055992a6d1d4467887e
Merge "Added instructions for deleting default mysql db to other services"
Merge "Updated nova-network to correct info given"
Merge "Adding guidance on software installation"
Merge "debian/ubuntu don't use chkconfig"