fb: fix volume rocker music track seek

based on an idea of DaneSH we use now audioservice
instead of Broadcast as well some minor
fixes in the key handling

Change-Id: If4afda046b9fbebda611615371a718122ffb57b6
Statusbar: Time and Date actions

Clicking on the Time will open the alarm

Clicking on the Date will open the calendar

...I feel that this is more functional than chaning the time...

Inspired from cm

Change-Id: Ie5fa37bf937cc84f4018f8f2fc1005875003946e