Name clash with Play for 'Json'

[howyp]

Thanks for the library, really useful.

Something that I've noticed is that the suggested way of importing enumeratum introduces a name clash with Play:

scala> def test() = {
     |   import enumeratum._
     |   import play.api.libs.json._
     |   Json.toJson("test")
     | }
<console>:19: error: reference to Json is ambiguous;
it is imported twice in the same scope by
import play.api.libs.json._
and import enumeratum._
         Json.toJson("test")

This can be worked around, but given that enumeratum is specifically designed to work well with Play's json support, this seemed a bit of a shame to me. Could we rename the enumeratum.Json object?

[lloydmeta]

Oh, nice find. This is a pity. I'm thinking of enumeratum.JsonHelper as a name but am open to suggestions :)

[howyp]

enumeratum.EnumFormats would seem most descriptive to me?

[lloydmeta]

@howyp done via #16 with release 1.3.0