message: Fix apollo-vscode packageExtension script
diff: "prepare": "npm run build",
  "postinstall": "npm run update-vscode",
  "update-vscode": "node ../../node_modules/vscode/bin/install",
  - "packageExtension": "npm run compile && ./node_modules/vsce/out/vsce package --baseContentUrl https://raw.githubusercontent.com/apollographql/apollo-cli/master/packages/apollo-vscode"
  + "packageExtension": "npm run build && ./node_modules/vsce/out/vsce package --baseContentUrl https://raw.githubusercontent.com/apollographql/apollo-cli/master/packages/apollo-vscode"
  },
  "engines": {
  "vscode": "^1.26.0"
  