feat #1308 Removing support for the robot applet

Instead of the applet, it is now recommended to use the Selenium Java
Robot: https://github.com/ariatemplates/selenium-java-robot

close #1308
fix #1055 option stayed selected in Select after removal from options list

When `@aria:Select` options were bound to the data model,
and the currently selected option was removed from the option list
through the binding, it still remained as the data model value
of the widget (although no longer available in the UI).

Close #1218
Close #1309
fix #1312 increase timeout for slow tests (IE7/8)

timeout increased from 40s to 120ms for the following failing tests:
   *  test.aria.widgets.form.multiautocomplete.test11.MultiAutoInvalidDataModel
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.StrictTrueTest
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.AlwaysFalseTest
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.NoneTrueTest
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.NoneFalseTest
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.StrictTrueWithTabTest
   *  test.aria.widgets.form.multiautocomplete.preselectAutofill.AlwaysTrueTest

and specifically on IE7:
   *  test.aria.widgets.form.autocomplete.preselectAutofill.AlwaysTrueTest
   *  test.aria.widgets.form.datepicker.errorstate.DatePicker
   *  test.aria.widgets.form.textinput.onblur.OnBlurTest
   *  test.aria.widgets.form.selectbox.checkValue.MainTemplateTestCase
   *  test.aria.widgets.form.textinput.onclick.OnClickTest


close #1312
1.6.6
fix #1314 disable robot for Firefox 3.6
fix #1307 Dialog onClose callback

This fix adds the possibility to call a callback everytime the Dialog widget is closed.