Remove redundant code

Attempts to view an object are now redirected to the browse pages
so we will never see a node/way/relation parameter here.
Drop ejs as we aren't using it anymore
Don't wait for a timeout when the browser doesn't support geolocation

If the browser doesn't support geolocation then we might as well just
start manual edit mode straight away rather than waiting four seconds.
Format browse page titles in a consistent way
Block max_id for changeset feeds instead of page which is no longer used