Copy CSS and JS sourcemaps if they exist (#20)

Author: tommcc

Gruntfile.js

@@ -71,7 +71,9 @@ module.exports = function (grunt) {
       main: {
         files: [
           { expand: true, cwd: path.resolve(paths().source.js), src: '**/*.js', dest: path.resolve(paths().public.js) },
-          { expand: true, cwd: path.resolve(paths().source.css), src: '**/*.css', dest: path.resolve(paths().public.css) },
+          { expand: true, cwd: path.resolve(paths().source.js), src: '**/*.js.map', dest: path.resolve(paths().public.js) },
+          { expand: true, cwd: path.resolve(paths().source.css), src: '**/*.css', dest: path.resolve(paths().public.css) },        
+          { expand: true, cwd: path.resolve(paths().source.css), src: '**/*.css.map', dest: path.resolve(paths().public.css) },
           { expand: true, cwd: path.resolve(paths().source.images), src: '**/*', dest: path.resolve(paths().public.images) },
           { expand: true, cwd: path.resolve(paths().source.fonts), src: '**/*', dest: path.resolve(paths().public.fonts) },
           { expand: true, cwd: path.resolve(paths().source.root), src: 'favicon.ico', dest: path.resolve(paths().public.root) },