Supporting env var assignments on Windows (Semantic-Org#316)

* Supporting env var assignments on Windows

* fix: change package.json to have cross-env

* fix: correct the description

package.json

@@ -14,19 +14,19 @@
     "build:dist": "babel src -d dist",
     "build:docs": "gulp docs",
     "build:docs-toc": "doctoc README.md CONTRIBUTING.md --github --maxlevel 4",
-    "predeploy:docs": "NODE_ENV=production npm run build:docs",
+    "predeploy:docs": "cross-env NODE_ENV=production npm run build:docs",
     "deploy:docs": "gh-pages -d docs/build -m 'deploy docs [ci skip]'",
     "lint": "eslint .",
     "lint:fix": "npm run lint -- --fix",
     "lint:watch": "watch 'npm run lint --silent' docs gulp src test",
-    "prepublish": "NODE_ENV=production npm run build:dist",
+    "prepublish": "cross-env NODE_ENV=production npm run build:dist",
     "release:major": "ta-script npm/release.sh major",
     "release:minor": "ta-script npm/release.sh minor",
     "release:patch": "ta-script npm/release.sh patch",
     "start": "npm run docs",
     "start:local-modules": "npm run docs -- --local-modules",
     "pretest": "gulp dll",
-    "test": "NODE_ENV=test karma start build/karma.conf.babel.js",
+    "test": "cross-env NODE_ENV=test karma start build/karma.conf.babel.js",
     "test:watch": "npm run test --silent -- --watch"
   },
   "repository": {