Hook up npm test
update version to 0.1.6

The most significant update in this version is Manuel's work on getting bitcore
to work in the browser.
add Manuel, Matias, myself to contributors
Merge pull request #100 from SomeoneWeird/ab-npmtest

Hook up npm test
Merge pull request #102 from ryanxcharles/feature/v0.1.6

Feature/v0.1.6