ticket:6 add widget template
ticket:6 add dummy widget class
ticket:6 add tests for widget class
ticket:6 add test that widget is rendered in form
ticket:6 slightly fix expected throwed exceptions in widget
ticket:6 add widget realization
ticket:5 add jQuery and jQueryUI
ticket:5 add widget on form
ticket:6 add test for ajax POST work
ticket:6 fix typo in test
ticket:6 fix typo in test
ticket:6 add ajax handling in view
ticket:6 split edit page on wrapper, body and form tpl

For usual POST we show form with base and body, for ajax - just form,
with dummy base_ajax
ticket:6 enable request Django context processor
ticket:6 add dummy base_ajax template
ticket:6 fix typo in tests
ticket:6 views logic fix
ticket:6 fix typo in template
ticket:6 add jquery.form and jquery.blockUI
ticket:6 add ajax on form