new tag for v0.6?

[jbrea]

To use it in julia v0.6 one currently has to checkout the master branch (see #7).
Would it be possible to add a new tag (v0.0.2) to avoid this?
I would like to depend on this package in my ReinforcementLearning package.

[jbrea]

Bump. (If there is any interest I would be willing to co-maintain this package.)