- Build: Fix build input for xdomain; update external files per latest

- Docs: Update dev. license badge per latest
- Linting (LGTM): Fix paths
- Linting (ESLint): Fix ignore path
- npm: Fix copy file paths

src/external/regenerator-runtime/runtime.js

@@ -16,6 +16,24 @@ var runtime = (function (exports) {
   var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
   var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
 
+  function define(obj, key, value) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+    return obj[key];
+  }
+  try {
+    // IE 8 has a broken Object.defineProperty that only works on DOM objects.
+    define({}, "");
+  } catch (err) {
+    define = function(obj, key, value) {
+      return obj[key] = value;
+    };
+  }
+
   function wrap(innerFn, outerFn, self, tryLocsList) {
     // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
     var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
@@ -86,16 +104,19 @@ var runtime = (function (exports) {
     Generator.prototype = Object.create(IteratorPrototype);
   GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
   GeneratorFunctionPrototype.constructor = GeneratorFunction;
-  GeneratorFunctionPrototype[toStringTagSymbol] =
-    GeneratorFunction.displayName = "GeneratorFunction";
+  GeneratorFunction.displayName = define(
+    GeneratorFunctionPrototype,
+    toStringTagSymbol,
+    "GeneratorFunction"
+  );
 
   // Helper for defining the .next, .throw, and .return methods of the
   // Iterator interface in terms of a single ._invoke method.
   function defineIteratorMethods(prototype) {
     ["next", "throw", "return"].forEach(function(method) {
-      prototype[method] = function(arg) {
+      define(prototype, method, function(arg) {
         return this._invoke(method, arg);
-      };
+      });
     });
   }
 
@@ -114,9 +135,7 @@ var runtime = (function (exports) {
       Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
     } else {
       genFun.__proto__ = GeneratorFunctionPrototype;
-      if (!(toStringTagSymbol in genFun)) {
-        genFun[toStringTagSymbol] = "GeneratorFunction";
-      }
+      define(genFun, toStringTagSymbol, "GeneratorFunction");
     }
     genFun.prototype = Object.create(Gp);
     return genFun;
@@ -386,7 +405,7 @@ var runtime = (function (exports) {
   // unified ._invoke helper method.
   defineIteratorMethods(Gp);
 
-  Gp[toStringTagSymbol] = "Generator";
+  define(Gp, toStringTagSymbol, "Generator");
 
   // A Generator should always return itself as the iterator object when the
   // @@iterator function is called on it. Some browsers' implementations of the