Upgrade build pipeline.

package.json

@@ -26,6 +26,7 @@
     "fix": "eslint --fix --ext .jsx --ext .js ./src ./__tests__ ./pipeline",
     "typecheck": "flow version && flow check",
     "verify": "npm test && npm run typecheck && npm run lint",
+    "develop": "gulp develop",
     "preversion": "npm run verify",
     "prepublish": "gulp release",
     "lint-staged": "lint-staged",
@@ -60,9 +61,10 @@
     "babel-plugin-transform-object-rest-spread": "6.23.0",
     "babel-preset-es2015": "6.24.1",
     "babel-preset-react": "6.24.1",
-    "babelify": "^6.3.0",
+    "babelify": "7.3.0",
     "browserify": "^9.0.3",
     "coveralls": "^2.11.2",
+    "create-react-class": "15.6.0",
     "del": "2.0.2",
     "envify": "3.4.0",
     "enzyme": "2.9.1",
@@ -74,7 +76,7 @@
     "eslint-plugin-react": "7.1.0",
     "flow-bin": "0.52.0",
     "gulp": "^3.8.8",
-    "gulp-babel": "^5.2.1",
+    "gulp-babel": "6.1.2",
     "gulp-concat": "^2.4.3",
     "gulp-size": "^2.0.0",
     "gulp-sourcemaps": "^1.2.4",