After some delay because of other works. Here goes new version with few nice ehancements

1. Operator voting update upon user vote
2. Changed alert to confirm on new chat request. If user clicks ok. We open chat.
3. Datepicker for date fields.
4. Improved drag & drop logic. Now user won't be able to drag widget outside of it's viewport.
5. Option to have welcome tooltip

execute doc/update_db/update_69.sql for update and follow standard upgrade tutorial.