message: adding build script, removing install script
diff: "main": "./src/backend/index.js",
  "bin": "./src/backend/index.js",
  "scripts": {
  - "install": "npm run build-prod",
  - "build-prod": "tsc && gulp build-prod",
  + "build": "tsc && gulp build-prod",
  "create-release": "gulp create-release",
  "build-backend": "tsc",
  "pretest": "tsc",
  "sqlite3": "4.1.1",
  "ts-exif-parser": "0.1.4",
  "ts-node-iptc": "1.0.11",
  - "typeconfig": "1.0.8c",
  + "typeconfig": "1.0.8d",
  "typeorm": "0.2.21",
  "winston": "2.4.4"
  },
  