Merge branch 'master' of https://github.com/facebook/react

* 'master' of https://github.com/facebook/react: (30 commits) Expose --target flag on jsx executable Contributing: cleanup quote style Add Relay blog post Fix long lines in vendor/fbtransform/visitors lint vendor/*.js fix .eslintignore remove ballmer example Fix a doc. cloneWithProps clones a ReactElement. lint from root Fixed mistake in jsdocs types for cloneWithProps Put deprecation warning for classSet Lint vendor/fbtransform as well More warnings to ReactFragment.create Warn when using constructor function directly Move option parsing into react-tools proper. Remove lodash devDependency Added the immutability talk to the React.js Conf update. Use same pathways for browser transforms as we use in react-tools lint: remove spaces from array brackets lint: remove spaces from object braces ...