ref #7268 Implement own extension point for preferences
ref #7006 Revert opcoach plugin for preferences
ref #7006 Avoid multiple warnings when opening prefs with no session
ref #7006 Fix typo
ref #7006 Migrate store preferences
ref #6190 removing svn property place holder in first line of code - java files
#5122 Implement Null Entity Session and integrate it in required preference pages
fixed ticket #4367
had to rename the packages to make them compliant with buckminster