Make the log archive name be the hostname.tbz2

Change-Id: I937f2d7a258c0da325a7c42d0dee150ed209c5be
Merge remote-tracking branch 'gerrit/master' into dev/reorg

Change-Id: I73cf864e3d0e6022e4f729cf6456e5d5233fd6a2
foreman: adapt to new ansible changes

Ansible 1.6.7 introduced a new change that stops passing duplicate
parameters to a module. Hence something like

debug: var=foo
       var=bar
       var=baz

does not work anymore. Replaces the above to a with_items loop.

Change-Id: I32f98e0d78259f027189cfed6fd347e8673f8a02