Refs #5671: Backport the 3.0 version of the Technique from master
Fixes #5671: Add an option in clockConfiguration to disable system clock sync with hardware clock (issues with Xen DomU's)
Merge pull request #543 from Kegeruneku/bug_5671/dev/5671_add_nohwsync_option_to_clockconfiguration

Bug 5671/dev/5671 add nohwsync option to clockconfiguration
Merging 2.11 into 3.0