Move webpack build to herok-postbuild; remove test:* scripts

docs/CONTRIBUTING.md

@@ -88,9 +88,10 @@ seconds for Webpack to recompile everything.
 
 `yarn test` runs [Jest](https://facebook.github.io/jest/).
 
-`yarn test:watch` runs Jest in watch mode.
+`yarn test --watch` runs Jest in watch mode. Jest will run until you press `q`,
+and re-run the tests when a source file changes.
 
-`yarn test:coverage` creates a test coverage report. View the HTML at `./coverage/lcov-report/index.html`.
+`yarn test --coverage` creates a test coverage report. View the HTML at `./coverage/lcov-report/index.html`.
 
 ### Lint
 

package.json

@@ -4,19 +4,17 @@
   "description": "Web frontend utilizing React for Olin College of Engineering's Amorphous Blob of Events (ABE).",
   "main": "server.js",
   "scripts": {
-    "clean": "rimraf bundle.js bundle.js.map",
     "build": "webpack --config=webpack.config.js -p",
-    "postinstall": "$npm_execpath run clean && $npm_execpath run build",
-    "start": "node server.js",
+    "clean": "rimraf bundle.js bundle.js.map",
     "dev": "webpack-dev-server --inline --hot",
-    "lint": "$npm_execpath run lint:js && $npm_execpath run lint:markdown",
-    "lint:js": "eslint --cache --ext .js,.jsx src *.js",
     "format": "eslint --fix --ext .js,.jsx src *.js && $npm_execpath run lint:markdown --fix",
+    "heroku-postbuild": "$npm_execpath run clean && $npm_execpath run build",
+    "lint:js": "eslint --cache --ext .js,.jsx src *.js",
     "lint:markdown": "markdownlint *.md && markdownlint .github/PULL_REQUEST_TEMPLATE.md -c .github/.markdownlintrc",
-    "test": "jest",
-    "test:coverage": "jest --coverage",
-    "test:watch": "jest --watch",
-    "stats": "webpack --json > stats.json"
+    "lint": "$npm_execpath run lint:js && $npm_execpath run lint:markdown",
+    "start": "node server.js",
+    "stats": "webpack --json > stats.json",
+    "test": "jest"
   },
   "engines": {
     "node": "^9"