remove unused $.extend
don't use event for adding to menu internally
remove dead feature disconnection code
reduce data sent in ThreadUpdate events
reduce data sent by QRPostSuccessful event
fix missing .fullID, add ID field to object sent
remove callback from CreateNotification event
remove AddCallback, QRGetSelectedPost, QRAddPreSubmitHook, and QRPostSelection
fix thread hiding bug
remove IndexBuild event
use post ID for jsmath event
structured-clone detail of event
clean up menu code, remove rmMenuEntry event
remove callback from AddMenuEntry
update CHANGELOG
update CHANGELOG again
tweak CHANGELOG again
Release 4chan X v1.8.0.
update README with status of 4chan X v1.8.0
update README