Stream lerna outputs

Fix #281

Author: Nicolas Carlo

package.json

@@ -22,17 +22,17 @@
   ],
   "scripts": {
     "lerna": "lerna",
-    "build": "lerna run build --scope @gitgraph/{core,react,js,node}",
-    "watch": "lerna run watch",
-    "storybook": "lerna run storybook",
+    "build": "lerna run build --scope @gitgraph/{core,react,js,node} --stream",
+    "watch": "lerna run watch --stream",
+    "storybook": "lerna run storybook --stream",
     "develop": "concurrently npm:watch npm:storybook",
-    "website": "lerna run start --scope=@gitgraph/website",
-    "deploy:website": "lerna run deploy --scope=@gitgraph/website",
+    "website": "lerna run start --scope=@gitgraph/website --stream",
+    "deploy:website": "lerna run deploy --scope=@gitgraph/website --stream",
     "lint": "tslint packages/**/src/**/*",
     "lint:fix": "npm run lint -- --fix",
     "pretest": "npm run build",
     "test": "jest",
-    "test:e2e": "lerna run test:e2e",
+    "test:e2e": "lerna run test:e2e --stream",
     "test:ci": "CI=true npm run test && npm run test:e2e",
     "clean": "lerna clean"
   },