chore(release): release v0.2.1 (qri-io#99)

chore(release): release v0.2.0 (qri-io#67)

chore(release): release v0.1.2 stable (qri-io#66)

chore(release): release v0.1.1

Merge pull request qri-io#49 from qri-io/0.1.0

chore(release): release v0.1.0