title: How to set a CGFloat to a UILabel's text property
body: <p>I have a <code>UILabel</code> called <code>optionsDisplayerBrushSizeLabel</code> who's text property I want to set to a <code>CGFloat</code>: <code>brushSizeVal</code>. I understand that the text property needs to be a string but I don't know how to convert a CGFloat to an <code>NSString</code>.</p>