Updated build tools.

Author: ryanelian

dist/aspnet-validation.js

@@ -15,8 +15,10 @@
     "build": "webpack && webpack --config webpack.config.min.js"
   },
   "devDependencies": {
-    "ts-loader": "^3.0.3",
-    "typescript": "^2.5.3",
+    "ts-loader": "^3.1.1",
+    "typescript": "^2.6.1",
+    "uglifyjs-webpack-plugin": "^1.1.0",
     "webpack": "^3.8.1"
-  }
+  },
+  "dependencies": {}
 }

dist/aspnet-validation.min.js

@@ -5,6 +5,7 @@
     "alwaysStrict": true,
     "strictNullChecks": false,
     "skipLibCheck": true,
+    "strictFunctionTypes": true,
 
     "noUnusedLocals": false,
     "noUnusedParameters": false,

dist/aspnet-validation.min.js.map

@@ -1,4 +1,5 @@
 const webpack = require('webpack');
+const uglifyES = require('uglifyjs-webpack-plugin');
 
 let tsconfigOverride = {
     declaration: false,
@@ -15,8 +16,11 @@ module.exports = {
     },
     devtool: 'source-map',
     plugins: [
-        new webpack.optimize.UglifyJsPlugin({
-            sourceMap: true
+        new uglifyES({
+            sourceMap: true,
+            uglifyOptions: {
+                ecma: 5
+            }
         })
     ],
     resolve: {