Adding tar as a dependency

tar is required to copy puppet modules to remote hosts

Change-Id: I7bf7c63e3a2a4c87cbb9f1024874232c21f104ef
Set the service provider to systemd for Fedora >= 18

init no longer works as the service provider for libvirtd on F18
https://bugzilla.redhat.com/show_bug.cgi?id=903871

Change-Id: I1423f7c761a351a4a33913c8698028df4f447092
Changing list of default modules for Fedora >= 18

Fedora 18 has apache 2.4.x
https://bugzilla.redhat.com/show_bug.cgi?id=903871

Change-Id: Ic7137787a6fa11ee9a930a7baa428e29ee3ca6ef
Create a new answer file when running on interactive mode

In order to be able to run packstack again with the same config when
using it in interactive mode, packstack now creates an answer file right
after the paramteres are confirmed.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=906410

Change-Id: Id4cf4050be778077d56ea1f41ec8d113f840dbc2
Removing conflict

Change-Id: I68f292f922341a43d93c5781740b996cc66444ed
Merge "Set the service provider to systemd for Fedora >= 18" into folsom
Merge "Changing list of default modules for Fedora >= 18" into folsom
Merge "Create a new answer file when running on interactive mode" into folsom
Removing references to s3

We were not using them anyways and they cause problems with puppet 3

Change-Id: Ibaa5b085e2b0d23a7278f6740bf65b92bac16ea6
Merge "Removing conflict" into folsom
Merge "Removing references to s3" into folsom