Fix to passphrase dialog and Issue #207

As you have asked, I have added bottom margin to table row in "Passphrase Dialog".
Regarding Issue #207,  I have attempted to solve it.
Parameters are: Master Key Id (Hex Format), User Name , User Email

https://drive.google.com/file/d/0B31e8A3Srhc3SThOSjBUSDRzcWs/edit?usp=sharing

Let me know if any changes are required.