Update deps and replace shrinkwrap with lockfile

This brings us closer to what we have on master.

package.json

@@ -33,7 +33,7 @@
     "babel-plugin-transform-react-jsx-source": "^6.8.0",
     "babel-preset-react": "^6.5.0",
     "babel-traverse": "^6.9.0",
-    "babylon": "6.8.0",
+    "babylon": "6.15.0",
     "browserify": "^13.0.0",
     "bundle-collapser": "^1.1.1",
     "coffee-script": "^1.8.0",
@@ -41,7 +41,6 @@
     "coveralls": "^2.11.6",
     "del": "^2.0.2",
     "derequire": "^2.0.3",
-    "es6-symbol": "^3.0.2",
     "eslint": "^3.10.2",
     "eslint-config-fbjs": "^1.1.1",
     "eslint-plugin-babel": "^3.3.0",
@@ -56,7 +55,6 @@
     "grunt-cli": "^0.1.13",
     "grunt-compare-size": "^0.4.0",
     "grunt-contrib-clean": "^0.6.0",
-    "grunt-contrib-compress": "^0.14.0",
     "gulp": "^3.9.0",
     "gulp-babel": "^6.0.0",
     "gulp-flatten": "^0.2.0",
@@ -69,14 +67,15 @@
     "jest-runtime": "^18.0.0",
     "loose-envify": "^1.1.0",
     "merge-stream": "^1.0.0",
-    "object-assign": "^4.1.0",
+    "object-assign": "^4.1.1",
     "platform": "^1.1.0",
     "run-sequence": "^1.1.4",
     "through2": "^2.0.0",
     "tmp": "~0.0.28",
     "typescript": "~1.8.10",
     "uglify-js": "^2.5.0",
-    "uglifyify": "^3.0.1"
+    "uglifyify": "^3.0.1",
+    "yargs": "^6.3.0"
   },
   "devEngines": {
     "node": "4.x || 5.x || 6.x || 7.x",