Question: Versioning vs. React support?

Should we do a major bump for each React major bump? Specially testing is easier if we follow that pattern. A weakness though is that we make the webpack versions matrix a bit more complex.

The goal of this issue is to collect feedback. Please, weigh in...

Options for now:
a) Leave 0.x for React 15 compatibility, make 1.x for React 16. Pros) easier testing. Cons) crazy webpack versions matrix, or
b) Consider 0.x supports both React 15 and 16. The problem here is that we can't ensure that support in our tests.

Open to additional suggestions...