WIP to allow views to be used standalone.

Right now, the library doesn't really support our use-case:
we want the views on their own so we can do a two-step enrolment
during user setup. Unfortunately the views are tied into a
delegate during instantiation, and can't be instantiated from a
storyboard/NIB because they lack -initWithFrame. This is the
first step to separate them out.
Quick hacky fix to get buttons to show correct text.

Localised strings don't seem to be loading, and can't see bundle in pod
project. May be a packaging issue.