class Thor::Runner

def thorfiles(relevant_to = nil)
  path = Dir.pwd
  thorfiles = []
  
  # Look for Thorfile or *.thor in the current directory or a parent directory, until the root
  while thorfiles.empty?
    thorfiles = Thor::Runner.globs_for(path).map {|g| Dir[g]}.flatten
    path = File.dirname(path)
    break if path == "/"
  end
  # We want to load system-wide Thorfiles first
  # so the local Thorfiles will override them.
  (relevant_to ? thorfiles_relevant_to(relevant_to) :
   thor_root_glob) + thorfiles - ["#{thor_root}/thor.yml"]
end