Update auto-reload.js

check if viewing a thread or viewing a board page when updating a thread so new posts do not appear at bottom of page while viewing threads list not sure if this was because of an outdated template but I thought I should point out this as it may affect html templates no matter the code as the banner code is the only code that checks where the user currently is.
Merge pull request #104 from undido/patch-1

Update auto-reload.js possible minor issue