Add support for early-init.el file

[jeffbowman]

Fixes #7

[alphapapa]

If this is all that's needed, that's great, and I'll be glad to merge this with a couple of small changes:

1. Please set the version to v0.2. This is more of adding a new feature than fixing a bug, in my interpretation.
2. Please add a changelog entry to match.

Or if you don't want to make further changes, I can take care of these when I have time.

Thanks.

[jeffbowman]

That seemed to be all I needed to do to get it to work in my case (as mentioned on #7). I'll make the changes and push shortly.

Thanks!

[djgoku]

Thanks for this, I needed this recently too.

I pulled this branch down and tested this locally. Everything worked great.

[abarocio80]

@jeffbowman This branch works great! Thanks!
@alphapapa When will this be merged into master?

[lispstudent]

Any timeline for when will this be merged into master?