Update doctrine to 2.0.0

Author: danez

package.json

@@ -23,7 +23,7 @@
   "homepage": "https://github.com/yannickcr/eslint-plugin-react",
   "bugs": "https://github.com/yannickcr/eslint-plugin-react/issues",
   "dependencies": {
-    "doctrine": "^1.2.2",
+    "doctrine": "^2.0.0",
     "has": "^1.0.1",
     "jsx-ast-utils": "^1.3.4",
     "array.prototype.find": "^2.0.1",