Bring everything across from master fumieval/thyme

[tmcgilchrist]

Sync the state of https://github.com/fumieval/thyme back into this main repository. These changes represent the last 2 released versions of Thyme:

• https://github.com/fumieval/thyme/releases/tag/v0.4
• https://hackage.haskell.org/package/thyme-0.3.6

[jamesdbrock]

thx @tmcgilchrist !