RedditSearch - update design

Fix for issue #706 - it's not complete, but I want to share the progress anyway, so you can see if you like the work so far, or if I must change something!

I still have to make the subtitle all in lowercase, but I can't find where in the code the first letter of each word is capitalized; another thing I haven't done yet is putting the arrow pointing upwards on the left of the score: should I use an asset or is it representable using a font character?

Anyway, this is how the instant answer looks after my changes: 
![reddit](https://cloud.githubusercontent.com/assets/3652195/3448752/51856c1e-015d-11e4-99f1-207957a95e8a.png)

I don't like the space between title and subtitle when the first is short:
![reddit2](https://cloud.githubusercontent.com/assets/3652195/3448762/72f97f7a-015d-11e4-872c-4fba2ff1f83b.png)

Maybe I should position the subtitle differently, in order to make it appear always after the same amount of space? But then the subtitles in the different boxes wouldn't be horizontally aligned...