[Android] GameList: Grid vs List

[ds84182]

Ideally the only time when a screenshot would not be available is when the user hasn't played the game yet.

I can also change the maximum number of lines displayed to 2 so most title can be read. I've also experimented with moving the text from on top of the screenshot (Example from my personal music app http://i.imgur.com/YH7FFfp.png).