dcousens/cb-helloblock — pull request #2 by weilu (2014-08-22 04:20:37+00:00)
Title: API allows single item instead of always demanding an array as an argument

Most of the time, propagate is used with a single transaction. It's just an odd interface having to wrap it with `[]`. If `propagate` accepts a single item, there's no reason other methods shouldn't.