Remove sizeThatFits - should fix most autolayout and sizing errors.

[kaandedeoglu]

Although I was the one who originally put the override for sizeThatFits - I've recently realized that it no longer worked correctly due to the recent structural changes in ActiveLabel. Removing the override and relying on UILabel's own implementation seems to fix the issues. #45, #41 and #36 should see improvements with this one.

[MBLESSEN]

This still does not fix the ui label cutting off text. #45 with custom font.

[kaandedeoglu]

@MBLESSEN Autolayout support might also require intrinsicContentSize to be overridden. Can you please try if

let labelHeight = label.sizeThatFits(CGSize(width: CGRectGetWidth(label.frame), height: CGFloat.max)).height

label.frame.size.height = labelHeight

gives the correct height.

[polqf]

Merging this! Sorry for the delay!