ActiveSupport::CoreExtensions::String::Inflections should coerce type

Imported from Lighthouse. Original ticket at: http://rails.lighthouseapp.com/projects/8994/tickets/6585 Created by Jason Lewis - 2011-03-15 18:41:39 UTC

I'm not sure if this has been considered and/or dismissed, but if #humanize, #camelize, etc called #to_s on the receiver, it would avoid a lot of whiny nils and other errors, and make view code more manageable (i.e., avoid having to remember to call to_s before humanize on values that might be nil.