** Added support for observing property changes into change ckeditor
plugin
** Changed MaterialRevisionSetting to accept nulls into value
** Added findLocaleByIso2 mehod into SystemSettingsController
** Added TagController
** Added methods for listing and creating revisions into
DocumentController
** Added update methods for title and language into DocumentController
** Added methods for listing and updating document tags into
DocumentController
** Implemented properties support in CoOpsServlet
** Changed CoOpsServlet to be synchronized
** Added property handling support into coops ckeditor plugins
** Added support for changing title into document
** Removed unused docprops and mrmonkey ckeditor plugins