Catch up CHANGELOG.

[dlyongemallo]

I noticed that the CHANGELOG was quite behind, so I caught it up to today. Less work to do later for whoever releases the next version.

Based on previous entries, it seems that changes made by @jvdwetering and @akissinger are not specifically credited by name. Not sure if anyone else is included in that group, so I credited everyone else by name. Let me know if I missed anyone/anything or if anything needs to be changed.

Also, I noticed that @ABorgna has been credited previous under both that name and @aborgna-q (seems to be personal vs work account). The specific change noted in this changelog update was under the @ABorgna handle, so I've used that, but let me know if it should be under the other one.

[jvdwetering]

Thanks! I was meaning to do this, and then other stuff just kept getting in the way.
I think we should also add that there has been a breaking change in how the json gets saved, which means older json is no longer parsible (this is so that now the json correctly remembers input/output ordering).

[dlyongemallo]

Made the requested changes.