- update openSUSE 12.3 JeOS
  * make sure kernel-desktop is not installed by default
    if the xen profile is active. For some strange reason
    zypper always installs kernel-desktop which is unwanted
- update pre-commit hook:
  * add information about perl code verification
  * skip the unit test perl code from being verified by 'perl -w'
- removed use of getXenConfig_legacy:
  * use new KIWIXMLVMachineData object to handle this part