Prepare v6.0.0 release (1st PS 0.15.0-compatible release) (purescript#39

)

* Update the bower dependencies

* Update Node to 14 in CI

* Update the changelog

Prepare v5.0.0 release (purescript#36)

* Update CI to build with the latest version of the compiler

* Update the bower repository URL to match the URL in the registry

* Upgrade bower dependencies

* Update the changelog

* Remove generics-rep from dev dependencies

Merge pull request purescript#18 from purescript/compiler/0.12

Updates for 0.12

Merge pull request purescript#15 from purescript/f-t

Add Foldable and Traversable instances for V

Make V Monoid (purescript#12)

* make V Monoid

* import abc ordering

Merge pull request purescript#10 from purescript/ps-0.11

Update for PureScript 0.11

Merge pull request purescript#8 from purescript/bump

Prepare for 2.0 release

Update build for release