Subtle layout / overflow bug(s)

[joshuawarner32]

See screenshot below:

• "Radio like" goes right to the right edge, making it look non-centered (minor)
• the text flows right to the edges of the button (minor)
• The button falls partway off the end of the group (so will the text in the group, with other resizings)

I'll also note (maybe this is a separate issue...) that on my macbook pro (+retina) the SquareButton example is so large that it can't expand far enough to see the entirety of the last button example.