WB 2.08.x

! update upgrade-script, now don't overwrite existings values in settings
+ add field tooltip to table pages in installer
! change some module tool_icon.png (Tks to Stefek)
! add date_time string to backup_droplets.zip
- search and comment out founded require_once(WB_PATH."/framework/class.database.php"); ...

! add table db engine in module install scripts
! some small updates in modules

preparing backend for the new installer
add SecureFormSwitcher (Admintool)