title: Decimal precision in JSON Schema
body: <p>I want to have my JSON Schema validate that no more than two decimal places are sent to my REST api.</p>
  
  <p>From what I can see in the latest JSON Schema RFC (v4) doesn't allow this. V1 had a maxDecimals validator. </p>
  
  <p>Does anyone know why that was taken out?</p>
  
  <p>I have a field that only holds two decimals when I store it in the database, and I do not just want to round down to two decimals. That would be changing the input quite dramatically for some users. So I want to reject any greater precision and force them to round them selves.</p>
  
  <p>I can of course do this using a custom validator that I write myself, but I would rather not unless I absolutely have to.</p>
  
  <p>Is there another way of indicating this in v4?</p>
  
  <p>Thanks</p>