Add 'acpid' to the packages section in kickstarttemplate.

* As libvirt uses acpi events to shutdown / reboot domains acpid must be
  installed in the vm.
Merge pull request #52 from mattthias/master_fix_missing_acpid_package_in_kickstart_template

Add 'acpid' to the packages section in kickstarttemplate.
Introduce open nebula repo for Debian.
DB backup script: ignore dirs, only cleanup files.
Update to 4.4 sunstone-server.conf
Merge pull request #54 from chrisN777/backupscript

DB backup script: ignore dirs, only cleanup files.
Merge pull request #53 from chrisN777/debian_repo

Introduce open nebula repo for Debian.
Merge pull request #55 from chrisN777/sunstone4.4

Update to 4.4 sunstone-server.conf