This pull requests allows the labels attributedText value to be set and have the label still respond to touches.
This pull request also removes an unnecessary (as far as I can tell) rigidity of the library of requiring a foreground color and font value when setting attributes. The label already has font and textColor properties, instead of crashing it is much more useful to use those when not provided along with attributes.
Remove unnesseary font and foreground value presense assertions
Update README to not require font and foreground color when setting a…
Remove no longer needed tests