Update for 0.7?

[paf31]

Hi @Jonplussed. Do you have any plans to update this for the new release? If not, would you take a PR?

[Jonplussed]

Hello! Yes, I plan on upgrading all my PureScript stuff this week as I dive back into WebGL. I do appreciate the offer, though.

[bubg-dev]

I wrote most of a 0.7.0 fix here but grunt-purescript hasn't been updated for 0.7.0 yet, and judging from this it doesn't look like it's going to happen soon.