reduce lodash size

package-lock.json

@@ -3795,6 +3795,14 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
       "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
     },
+    "lodash-webpack-plugin": {
+      "version": "0.11.4",
+      "resolved": "https://registry.npmjs.org/lodash-webpack-plugin/-/lodash-webpack-plugin-0.11.4.tgz",
+      "integrity": "sha1-bD7Lo9S40ktTlAtjVCcVxe08SsU=",
+      "requires": {
+        "lodash": "4.17.4"
+      }
+    },
     "lodash._basecallback": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/lodash._basecallback/-/lodash._basecallback-3.3.1.tgz",

package.json

@@ -28,6 +28,7 @@
     "intersection-observer": "^0.5.0",
     "intl-relativeformat": "^2.1.0",
     "lodash": "^4.17.4",
+    "lodash-webpack-plugin": "^0.11.4",
     "marky": "^1.2.0",
     "node-fetch": "^1.7.3",
     "node-sass": "^4.7.2",

webpack.client.config.js

@@ -3,6 +3,7 @@ const config = require('sapper/webpack/config.js')
 const ExtractTextPlugin = require('extract-text-webpack-plugin')
 const UglifyJSPlugin = require('uglifyjs-webpack-plugin')
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
+var LodashModuleReplacementPlugin = require('lodash-webpack-plugin')
 
 const isDev = config.dev;
 
@@ -63,6 +64,7 @@ module.exports = {
     }),
 		/* disable while https://github.com/sveltejs/sapper/issues/79 is open */
     //new ExtractTextPlugin('main.css'),
+    new LodashModuleReplacementPlugin(),
 		new webpack.optimize.ModuleConcatenationPlugin(),
 		new UglifyJSPlugin(),
     new BundleAnalyzerPlugin({ // generates report.html and stats.json