ref #7849: disable apply button until something was changed in preference page
local preferences database specific
fix #7312: language preference should not be saved immediately
ref #7268 Implement own extension point for preferences
ref #4611 Restructure string externalization for taxeditor.store
ref #6190 removing svn property place holder in first line of code - java files
potential fix for #4535
Fixed Ticket #4447 and #4535
Fixed Ticket #4535
chnaged description for LanguagePrefrence menu
Renamed classes to match the new order in PreferenceMenu