Update TypeScript and webpack, use default terser plugin.

Author: ryanelian

package.json

@@ -16,9 +16,9 @@
     "build": "webpack && webpack --config webpack.config.min.js"
   },
   "devDependencies": {
-    "ts-loader": "^5.2.1",
-    "typescript": "^3.1.3",
-    "webpack": "^4.20.2",
+    "ts-loader": "^5.3.1",
+    "typescript": "^3.2.1",
+    "webpack": "^4.26.1",
     "webpack-cli": "^3.1.2"
   },
   "dependencies": {}

webpack.config.min.js

@@ -1,5 +1,4 @@
 const webpack = require('webpack');
-const uglifyES = require('uglifyjs-webpack-plugin');
 const path = require('path');
 
 let tsconfigOverride = {
@@ -18,16 +17,6 @@ module.exports = {
         libraryTarget: 'umd'
     },
     devtool: 'source-map',
-    optimization: {
-        minimizer: [
-            new uglifyES({
-                sourceMap: true,
-                uglifyOptions: {
-                    ecma: 5
-                }
-            })
-        ],
-    },
     resolve: {
         extensions: ['.ts', '.tsx', '.js']
     },