Relabel scrape button with "Save as final"
Relabel unsure button with "Save for review later"
Relabel archive button with "Cancel"
Remove manual button
Always create a mapping when a URL is entered
Remove unused Url#manual! method
Remove unused CSS for manual button & URLs
Stop referencing the manual state in UrlsHelper spec
Replace "manual" with "unsure" in organisation counts view
Reorder buttons
Remove unused Url#archive! method
Remove unused archive highlight for URL list

We won't have this state any more, so we don't need its styling.
Rename the archive button class to "cancel"
Remove more references to the "archive" state
Remove unused #destiny_button helper
Rename "scrape" state to "finished"
Rename "unsure" state to "unfinished"
Replace mentions of imaginary "redirected" state
Use a link instead of a <button> for the cancel button
Work around the Cancel a.button link issue; deal with a slight vertical spacing issue on the same element; clean up a little