GitHub: Implemented changelog generation

[scottgonzalez]

I haven't tested this yet, but figured I'd push in case someone else gets around to testing before I do.

TODO:

• Filter our PRs

[jzaefferer]

Could you rebase this? The PR now seems to include a bunch of unrelated commits, e.g. adding cdn.js, which doesn't belong here.

[scottgonzalez]

Rebased.

[jzaefferer]

This currently fails with Error: Cannot find module 'github'. Will try again later and dig a bit.

[scottgonzalez]

Oops, try changing https://github.com/jquery/jquery-release/pull/8/files#diff-8f83cf4e554cfef336da48f2169e3704R2 to require( "github-request" ).

[scottgonzalez]

We need to filter out pull request which show up as issues through the API.

[gnarf]

Going through some old pulls, is this dead or should we revive it?

[arschmitz]

This is on me iv promised to test twice :-(

[scottgonzalez]

It's definitely not ready to be merged. There are at least two issues that are documented in my last two comments.

[gnarf]

@scottgonzalez : could you maybe edit the open issues into the main pull as * [ ] items to be checked off?

[scottgonzalez]

Did a minor update and added the PR filtering to the main description. In case you can't tell, I haven't actually tested this, I've just been waiting for someone managing a project that uses GitHub to finish this. At this point, it won't rebase cleanly.

[dmethvin]

Pinging @timmywil, he's working on several build-related tasks for our next release.

[scottgonzalez]

I've rebased and mostly reimplemented this. It handles changelog generation, but not contributor gathering. This is ready for review now.