Carrierwave

All of the uploady goodness of Carrierwave including tests to see if the images are present on the meme show and index pages.
These validations are becoming difficult to read. It would be better if each attribute had it's own area for its validations. For example:

```ruby
validates :email, presence: true, confirmation: true, length: { minimum: 10 }
```

This way, there is one place that I need to look to see what's being validated for an email etc