+ add js beautify config file.

.jsbeautifyrc

+{
+  "js": {
+     "indent_size": 4,
+     "indent_char": " ",
+     "eol": "\n",
+     "indent_level": 0,
+     "indent_with_tabs": false,
+     "preserve_newlines": true,
+     "max_preserve_newlines": 10,
+     "jslint_happy": false,
+     "space_after_anon_function": false,
+     "brace_style": "collapse",
+     "keep_array_indentation": false,
+     "keep_function_indentation": false,
+     "space_before_conditional": true,
+     "break_chained_methods": false,
+     "eval_code": false,
+     "unescape_strings": false,
+     "wrap_line_length": 0,
+     "wrap_attributes": "auto",
+     "wrap_attributes_indent_size": 4,
+     "end_with_newline": true
+  }
+}