Adding standalone selenium in case someone wants to run then locally

package.json

@@ -16,6 +16,8 @@
     "lint-fix": "yarn lint --fix",
     "jest-watch": "TEST_MODE=unit NODE_ENV=test jest --watch",
     "e2e": "./scripts/e2e.js",
+    "pree2e-local": "./scripts/e2e-local.sh",
+    "e2e-local": "nightwatch --config nightwatch-local.conf.js",
     "test": "TEST_MODE=unit NODE_ENV=test jest && TEST_MODE=unit NODE_ENV=test mocha -R ${MOCHA_REPORTER:-spec}",
     "test-cover": "TEST_MODE=unit NODE_ENV=test istanbul cover _mocha --report text --check-coverage -- -R spec",
     "heroku-postbuild": "./bin/cli plugins reconcile && yarn build",
@@ -170,6 +172,7 @@
     "redux": "^3.6.0",
     "redux-thunk": "^2.1.0",
     "resolve": "^1.4.0",
+    "selenium-standalone": "^6.9.0",
     "semver": "^5.4.1",
     "simplemde": "^1.11.2",
     "smoothscroll-polyfill": "^0.3.5",

scripts/e2e-local.sh

@@ -0,0 +1 @@
+selenium-standalone install