Gx release v0.12.1

gx release 0.12.0

cache install paths

gx version v0.10.0

Merge pull request whyrusleeping#95 from noffle/version-0.9.1

Bump version to 0.9.1.

version bump to 0.9.0

add make deps

update multiaddr import path

version bump, 0.6.0

version bump