Bug 1035693 - [Loop][CallLog] Add 'long-press' actions to the items in t...

...he call log. r=jaoo,ferjm
I've kept separately due to from Controller I dont want to block the attention (I dont want to wait until getting the contact for launching it).
On the other hand, if it's the Attention the one in charge of this, we could have the risk that the user (or .mediaUp/ WS) will close the Attention before returning any result, which could be dangerous as well. I'll move this discussion to the performance bug and then we could review this.