nonpop

Confusing error when trying to compile a module with a duplicate name

1

**Quick Summary:** Trying to compile a module with a name that's used by another module eg. `Process` (conflicting with the one in elm/core) results in an error message which basically...

Trying to compile this module: ```elm module SSCCE exposing (sscce) type alias ListOfInts = List Int sscce : ListOfInts -> ListOfInts sscce list = "oops" :: list ``` gives the...

Empty types should not be allowed

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According to the GraphQL specification both object types and input types should have at least one field. See [here](http://facebook.github.io/graphql/October2016/#sec-Object-type-validation) and [here](http://facebook.github.io/graphql/October2016/#sec-Input-Object-type-validation). So, the following program should crash saying something about...

Add weeknumbers to calendar

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Hi, this preliminary PR adds week numbers to the calendar view. I can polish the code and add tests later, maybe even make it a minor release instead of major,...