Add node modules and new code for release (#57)

Co-authored-by: taakleton <taakleton@users.noreply.github.com>

node_modules/cssstyle/lib/properties/fontWeight.js

@@ -0,0 +1,33 @@
+'use strict';
+
+var valid_weights = [
+  'normal',
+  'bold',
+  'bolder',
+  'lighter',
+  '100',
+  '200',
+  '300',
+  '400',
+  '500',
+  '600',
+  '700',
+  '800',
+  '900',
+  'inherit',
+];
+
+module.exports.isValid = function isValid(v) {
+  return valid_weights.indexOf(v.toLowerCase()) !== -1;
+};
+
+module.exports.definition = {
+  set: function(v) {
+    this._setProperty('font-weight', v);
+  },
+  get: function() {
+    return this.getPropertyValue('font-weight');
+  },
+  enumerable: true,
+  configurable: true,
+};