Pass wrapmode value around a a string.

[jpakkane]

Because the return value of get_option can be WrapMode, every single place where options are used need to handle WrapMode.

This MR changes it to be a basic string combo, which gets transformed into a WrapMode only at the point where it is actually used.

This simplifies things for the option rewrite branch.

[jpakkane]

Test failures are unrelated and in other MRs too.