Fixed npm build commands

Summary:
I broke this pretty bad in a0fe403!

Test plan:
npm run build

Auditors: riley

package.json

@@ -31,8 +31,8 @@
   },
   "scripts": {
     "build": "npm run prod && npm run dev",
-    "prod": "webpack -p",
-    "dev": "webpack --config utils/webpack.config.babel.js -d --devtool hidden --output-file=tota11y.js",
+    "prod": "webpack --config webpack.config.babel.js -p",
+    "dev": "webpack --config webpack.config.babel.js -d --devtool hidden --output-file=tota11y.js",
     "lint": "eslint index.js plugins test utils",
     "test": "mocha --require test/babel-hook test/*.js",
     "live-test": "webpack-dev-server --config utils/webpack.config.babel.js --hot --inline"

utils/webpack.config.babel.js → webpack.config.babel.js

@@ -4,7 +4,7 @@ let path = require("path");
 let postcss = require("postcss");
 let webpack = require("webpack");
 
-let options = require("./options");
+let options = require("./utils/options");
 
 // PostCSS plugin to append !important to every CSS rule
 let veryimportant = postcss.plugin("veryimportant", function() {
@@ -48,15 +48,15 @@ module.exports = {
         // license info
         new webpack.BannerPlugin(
             bannerTemplate({
-                version: require("../package.json").version,
+                version: require("./package.json").version,
                 date: new Date().toISOString().slice(0, 10),
             }),
             {entryOnly: true}),
 
         // Make the JSX pragma function available everywhere without the need
         // to use "require"
         new webpack.ProvidePlugin({
-            [options.jsxPragma]: path.join(__dirname, "element"),
+            [options.jsxPragma]: path.join(__dirname, "utils", "element"),
         }),
     ],
     postcss: [veryimportant],