WB 2.08.x

+ add maintance modus in backend

! fallback changes in wysiwyg Revision 1754
because it's required that section_id is the PRIMARY KEY
Fallback will be done in upgrade-script until the final version
! build in extra input seo title in page settings
! beginning rebranding wb_theme

1. validation fix in print_footer, class.database
   ! replace settings and default header

! preparing new groups management and page settings
! upgrade-script insert or update page access files

+ move admin/themes/templates/ to admin/skel/themes/htt/
! and update class.wb.php, upgrade-script.php