closes #102 drop promises lib, which was a superset of the ES6 promise lib
closes #102 drop promises lib, which was a superset of the ES6 promise lib

build-canaries/nevergreen,build-canaries/nevergreen,darrenhaken/nevergreen,darrenhaken/nevergreen,build-canaries/nevergreen,darrenhaken/nevergreen,build-canaries/nevergreen