In `Locale.parse()`, only parse the argument if it's a string, otherwise just return the argument. This assumes that a non-string argument is either a `Locale` instance, or a proxy object pretending to be one. That may not be a safe assumption, but at least it allows you to use proxy objects such as Paste's `StackedObjectProxy` for locales.

include babel/global.dat
include babel/localedata/*.dat
include doc/api/*.*
include doc/*.html