Add generator for copying assets for customization

lib/generators/fancybox_rails_generator.rb

@@ -0,0 +1,13 @@
+class FancyboxRailsGenerator < Rails::Generators::Base
+  source_root File.expand_path("../../../vendor/assets", __FILE__)
+
+  desc "Copy FancyBox into lib/ for customization"
+  def copy_assets
+    dir = Pathname.new(self.class.source_root)
+    Dir[self.class.source_root + '/**/*'].each do |entry|
+      next if File.directory?(entry)
+      file = Pathname.new(entry).relative_path_from(dir)
+      copy_file file, "lib/assets/#{file}"
+    end
+  end
+end