[Rails] When installing into a new rails project, set the http paths …

…correctly for stylesheets and javascripts.

lib/compass/installers/rails.rb

@@ -9,6 +9,8 @@ def configuration_defaults
           :css_dir => (css_dir || prompt_css_dir),
           :images_dir => default_images_dir,
           :javascripts_dir => default_javascripts_dir,
+          :http_stylesheets_path => default_http_stylesheets_path,
+          :http_javascripts_path => default_http_javascripts_path,
           :http_images_path => default_http_images_path
         }
       end
@@ -55,6 +57,14 @@ def default_http_images_path
         "/images"
       end
 
+      def default_http_javascripts_path
+        "/javascripts"
+      end
+
+      def default_http_stylesheets_path
+        "/stylesheets"
+      end
+
       def prompt_sass_dir
         recommended_location = separate('app/stylesheets')
         default_location = separate('public/stylesheets/sass')