fixed bug 828980. Integrated new design for calendar tooltip hint

fixed bug 828980. Integrated new design for calendar tooltip hint. Files changed

apps/calendar/style/ui/swipe_left.png
apps/calendar/index.html
apps/calendar/js/views/months_day.js
apps/calendar/style/fonts/MozTT Light.ttf
apps/calendar/style/fonts/MozTT Regular.ttf