Bug 890209 and 896368 -sms application display dialog with photo

Bug 890209 - [sms] when tapping on the header, we should be able to go to the contact card
Bug 896368 - [SMS/MMS] When tapping on a contact added into 'To' field, the picture is not shown 

-Add dialog when tapping on the header (Bug 890209)
-Display dialog with photo (Bug 896368)
-Change a margin value of dialog header's CSS