* Initial draft of the json-to-dhall tool
* Homogenous JSON maps -> Dhall association lists. Bower example.
* Default conversion options. Ghci examples in function annotations.
* Added type signature to text color highlighting functions (error
reporing)
* Removed TypeApplications extension
* Explicit semigroups
* Disable ghc < 8.0 build
* Type specifications for 'None's (e.g. None Integer instead of just None)
* New style for unions, e.g.: < Left : Text | Right : Integer >.Right +1