json.gemspec

[marcandre]

I am wondering if #398 is this the right way to go.

Current gemspec is error prone as the files are listed explicitly instead of generated on the fly.

It is also confusing that json_pure.gemspec is generated automatically and not json.gemspec.

Either #398 is reverted (and control character?? fixed) or else the gemspec should be cleaned up.

[hsbt]

In last year, I have not a owner grant of json_pure. Now, I can release json and json_pure. We will replace json_pure.gemspec same as json.gemspec.

[hsbt]

@marcandre I think the current gemspecs have no issues. So, I will close this.