update jquery to 1.9.1
update superfish to 1.5.1 for jquery 1.9 compatibility
update jquery.modal to 0.5.2
update jquery-ui to 1.10.0

some notes:

* new version of autocomplete part requires menu, that's why menu part is
  added too.

* new css hide .ui-datepicker, so I renamed our own .ui-datepicker to .datepicker
update jquery-ui-timepicker-addon to 1.2
update jquery.cookie to 1.3.1
Merge branch '4.2/update-jquery-and-related'