Move files over for Ember CLI with this one weird trick.

convert_for_ember_cli.rb

# Script to rename underscored files to dasherized
# Example: changes app/models/foo_thing.js to app/models/foo-thing.js
# Ember CLI decided dashes for consistency, so let's change it over
# to that!
# First, install active support with gem install activesupport
# Run with "ruby convert_for_ember_cli.rb"
require 'fileutils'
require 'active_support/core_ext/string'

# Replace app,test with your filenames.
Dir['{app,test,spec}/**/*.{coffee,js,hbs}'].uniq.each do |file|
  new_filename = file.underscore.dasherize.gsub('-spec', '-test')
  puts "moving #{file} to #{new_filename}"
  FileUtils.mkdir_p File.dirname new_filename
  FileUtils.mv file, new_filename, :force => true
end