Put backendId into pro file

Change-Id: I765045069c5b64c2848b58b2650f1b37591b9023
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
Refactor DaySwitcher

- Abandon DropDownMenu. Decision to have the three days in one row
- Show the conference's location
- Update the date format to show

Change-Id: I5e5dfce175b5aa0c6e3320f8e125b4f9af592e5d
Reviewed-by: Niels Weber <niels.weber@digia.com>