Upgrade purescript-react 5

[jvliwanag]

• Removed default div wrapper since it's now possible to render an array directly
• Needed to add resolution in bower since purescript-react-dom still uses an older purescript-react-5

Or should probably hold this off until purescript-react-dom is updated - https://github.com/purescript-contrib/purescript-react-dom/pull/10

[jvliwanag]

Removed bower resolution since purescript-react-dom was updated

[martyall]

just wondering how much longer / what's left to do before this one gets in?

[paf31]

I'm planning to come back to review all of the open Thermite PRs soon.

[athanclark]

@jvliwanag version v6.x of thermite now supports react v16.x and purescript-react v6.x, and purs v0.12.x. Sorry this took so long!