Wrap new has_many items in an <li> tag

[jhanggi]

When adding new items in the has_many JS, the new fieldsets are not being wrapped in

tags, so the DOM is technically in an invalid state.

[coveralls]

Coverage remained the same when pulling 1dadb59 on jhanggi:wrap_new_has_many_in_li into 3997f01 on activeadmin:master.

[seanlinsley]

I assume this is for the situation where f.has_many isn't nested in f.inputs? When it is nested in f.inputs, the HTML structure makes sense:

[seanlinsley]

I'm going to close this since you never responded. Please feel free to update this PR with additional information so it can be reconsidered.

[jhanggi]

That's fine. I haven't had a chance to verify that it isn't just something specific to how we're using it (we're doing some hackery around the has_many).