Emitting send and end events at json call

[ti0ma]

I saw that this have been implemented at #24 some time ago, but without tests.
As I need this features like water, I used the code at this pull request and implemented a test.

I've seen that there aren't tests for response.json() method but i've not implemented them all, because it's not the goal of this pull request. But I actually can do this if it's necessary to move this feature forward.

Cheers!

[estilles]

@ti0ma, thanks for the PR. I wasn't going to entertain these types of requests until after the 2.0 rewrite, but if you really need this I will merge it. Before I merge, I would ask that you squash your commits and resubmit. Once you do I will gladly merge into the 1.x branch and publish to npm.

Thanks again and sorry for the inconvenience.

[ti0ma]

I've solved this issue pushing my fork to my private npm registry, so I don't need this at the official repo as well.

But if someone needs it, I squashed the commits and pushed again.

Thanx for all,
Cheers!

[estilles]

@ti0ma ... thanks again. If you no longer have any urgency for this change I would prefer to hold off on merging it. This issue is already address in the upcoming 2.0 release. If you (or anyone else for that matter) find themselves needing this with any degree of urgency, just ping me and I will gladly merge it.

[estilles]

There appears to still be some immediate interest in this PR. I will merge this into the 1.x branch and release in 1.4.3 tonight.

[estilles]

Merged via ae6c785

[estilles]

Published in release 1.4.3