Bump actions/github to 2.2.0 to support GHES (#72)

* Bumping actions/github to 2.2.0

* Husky commit correct node modules

node_modules/cssom/lib/CSSSupportsRule.js

@@ -0,0 +1,36 @@
+//.CommonJS
+var CSSOM = {
+  CSSRule: require("./CSSRule").CSSRule,
+};
+///CommonJS
+
+
+/**
+ * @constructor
+ * @see https://drafts.csswg.org/css-conditional-3/#the-csssupportsrule-interface
+ */
+CSSOM.CSSSupportsRule = function CSSSupportsRule() {
+  CSSOM.CSSRule.call(this);
+  this.conditionText = '';
+  this.cssRules = [];
+};
+
+CSSOM.CSSSupportsRule.prototype = new CSSOM.CSSRule();
+CSSOM.CSSSupportsRule.prototype.constructor = CSSOM.CSSSupportsRule;
+CSSOM.CSSSupportsRule.prototype.type = 12;
+
+Object.defineProperty(CSSOM.CSSSupportsRule.prototype, "cssText", {
+  get: function() {
+    var cssTexts = [];
+
+    for (var i = 0, length = this.cssRules.length; i < length; i++) {
+      cssTexts.push(this.cssRules[i].cssText);
+    }
+
+    return "@supports " + this.conditionText + " {" + cssTexts.join("") + "}";
+  }
+});
+
+//.CommonJS
+exports.CSSSupportsRule = CSSOM.CSSSupportsRule;
+///CommonJS