update #13

1. Added fix for bootstrap dropdowns (now if you select something,
button will have text: <Button text> <Selected element text>)
2.  Added ajax wrapper (web/js/ajax.js) - now all ajax loads will be
make with this code
3. Fixed projects tickets percents in dashboard (now shows numbers
before comma)
4. Fixed loading of tickets tab in dashboard
5.  Removed content loading function and dropdown fix from
/web/js/dashboard.js
6.  Added interface for adding tickets (modal window)
7. Removed ToDo from readme