#805 - start of promissory callback support - onSubmit
#805 - onCancel accepts promissory callbacks, qq.Promise can store multiple success/failure callbacks now
#805 - simply bind alternative (since all supported browsers don't implement bind and I don't like modifying Function.prototype)
#805 - why not call it bind?
#805 - document it
#805 - fix documentation error, and add some spacing
#805 - promissory onResume and onValidateBatch
#805 - promissory onValidate (respecting stopOnFirstInvalidFile)
#805 - promissory onSubmitDelete
#805 - accidentally removed call to onSubmitted callback