npm run start did not work on a windows maschine: http://stackoverflow.com/questions/30950032/how-can-i-run-multiple-npm-scripts-in-parallel

package.json

@@ -5,8 +5,8 @@
   "main": "src/index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" & exit 1",
-    "start": "watchify src/index.js  -t [ envify --NODE_ENV development ] -t [ babelify --presets [ es2015 ] ] -o dist/tesseract.dev.js --standalone Tesseract & watchify src/browser/worker.js  -t [ envify --NODE_ENV development ] -t [ babelify --presets [ es2015 ] ] -o dist/worker.dev.js & http-server -p 7355",
-    "build": "browserify src/index.js -t [ babelify --presets [ es2015 ] ] -o dist/tesseract.js --standalone Tesseract && browserify src/browser/worker.js -t [ babelify --presets [ es2015 ] ] -o dist/worker.js",
+    "start": "concurrently --kill-others \"watchify src/index.js  -t [ envify --NODE_ENV development ] -t [ babelify --presets [ es2015 ] ] -o dist/tesseract.dev.js --standalone Tesseract\" \"watchify src/browser/worker.js  -t [ envify --NODE_ENV development ] -t [ babelify --presets [ es2015 ] ] -o dist/worker.dev.js\" \"http-server -p 7355\"",
+    "build": "concurrently --kill-others \"browserify src/index.js -t [ babelify --presets [ es2015 ] ] -o dist/tesseract.js --standalone Tesseract\" \"browserify src/browser/worker.js -t [ babelify --presets [ es2015 ] ] -o dist/worker.js\"",
     "release": "npm run build && git commit -am 'new release' && git push && git tag `jq -r '.version' package.json` && git push origin --tags && npm publish"
   },
   "browser": {
@@ -18,6 +18,7 @@
     "babel-preset-es2015": "^6.16.0",
     "babelify": "^7.3.0",
     "browserify": "^13.1.0",
+    "concurrently": "^3.1.0",
     "envify": "^3.4.1",
     "http-server": "^0.9.0",
     "pako": "^1.0.3",
@@ -41,4 +42,4 @@
     "url": "https://github.com/naptha/tesseract.js/issues"
   },
   "homepage": "https://github.com/naptha/tesseract.js"
-}
+}