Next submission link - fixes #19

Fix #19 
You don't need to append it to the #afchStatus element -- in fact, this doesn't work :)

Just do `new AFCH.status.Element(...`

See https://github.com/WPAFC/afch-rewrite/blob/next-submission-link/src/modules/core.js#L873-L874 for how it gets appended.