change data-scrollReveal to data-scroll-reveal
add build process, umd wrapper and minified version
implement basic test suite

- based on tape and testling
- does not currently work on testling-ci
- this is probably testling-ci's fault
- does work quite nicely locally
- https://github.com/substack/testling/issues/68
Merge pull request #28 from jenius/tests

Integrate starting foundation for testing, using testling