Response decoders called if no Content-Type is present

[lathspell]

Problem:
I have one $rest object that I use for several calls. If the first get() is answered with Content-Type: application/json and the second get() is answered with just 204 No Content without any Content-Type header at all then it is still processed by the JSONDecoder class, which produces an syntax error.

Probably cause:
In Core.php the $this->response object is initialized only in the constructor and not in e.g. call().
So any headers that are not present in a HTTP response will keep their previous values.

Possible fix:
I tried to move the initialization to call() which solved this problem but created a new one. Now the JSONDecoder is not called at all as BaseDecoder compares against an empty "$this->content_type".
I gabe up there :)

[othercodes]

HI! sorry for my late response, have been busy, I have added some fixes and unit test over the project the new version should work properly now please try it.

Check pull-request #9

[othercodes]

I will close this, the issue seems to be solved :)