Update afch.js

This seems to work on test.wikipedia to get rid of the o = null error
https://github.com/WPAFC/afch/issues/5

Okay.  I'm just going to comment out the whole " // test if there are ref tags after reflist" section... If there is still an error message for you Nathan2055, I'm going to need to know which pages the error shows up on and which ones it doesn't...
Merge pull request #12 from Technical-13/master

Merged, will push to beta within the hour.