ajax-form ignores empty fields

[eximius313]

I have a simple form containing two input fields.
When one of them is empty, ajax-form doesn't mention it in the request.
I think, that ajax-form should put its name with empty value instead of ignoring it, because this has serious implications with validation.

[rnicholus]

The intent was to submit form data via XHR following the same rules as a native form submit. It looks like this particular detail was missed. I'll fix in the next release.

Currently, I am (very slowly due to other commitments) working on #55. Once that is complete, I'll be sure to work on this before releasing ajax-form 2.0.

[rnicholus]

This is fixed in the 2.0.0 branch, to be released with v2.