CMS-3703 User preferences without value causes error popup-box to appear in admin console.
Show empty string when preference value is empty, instead of completely hiding the preference.
CMS-4030 : Base path of relative includes in XSLT are unnecessarily URL-encoded. - URL Encoding is necessary for logic, but is now decoded again at the end.
CMS-3752 LivePortalTrace does not show the time of extensions in the total View Transformations time. Could not replicate, but made the code somewhat more stable.