v4.1.1

• Minor bug fix with fields caching. #507
• Fixed an inconsistency pointed out in #495, in which the initialValues config parameter and props were not behaving the same as if you had dispatched an INITIALIZE action yourself.
• Fixed a bug from #506, where returning complex objects as errors was working for sync validation, but was not working for async or submit validation. You may now pass complex objects as errors. If you pass an array, however, it will take the first item in the array as the error.