An option to adjust font size

Request from e-mail:

> I am using the Google translator on your app. I would like the input 
> text and translated text fonts to be bigger.
> 
> I was able to tweak my SMS fonts via N9QTweak app. I use size 34 and **bold**.
> 
> Could you include an option in your settings to choose font size 
> and **bold** please.
