Add hidden attribute to DOM properties.

[lrowe]

No description provided.

[zpao]

Awesome! Can you rebase? 32423a8 moved things around so this doesn't apply cleanly anymore.

[lrowe]

Updated the patch. Running the tests gives me the same error as on master:

Running "phantom:run" (phantom) task
Error while invoking `findComponentRoot` with the following ancestor node: [object Object]

createMarkupForProperty: it should create markup for simple properties
Error: Invariant Violation: EventPluginRegistry: Cannot inject event plugin ordering more than once. in http://localhost:8080/react-test.js (line 21547)

TypeError: 'undefined' is not a function (near '...}.bind(this));...')

  http://localhost:8080/jasmine.js:3884
PhantomJS tests timed out after 60 seconds.

[zpao]

Not your fault. We have a bug with some of our testing infra - #155