   The following transitions  are pre-registered:
   
   - `cross-fade`
-  - `move-top`
-  - `move-bottom`
+  - `move-up`
+  - `move-down`
   - `move-left`
   - `move-right`
   - `none`

  ###
  animate = (elementOrSelector, animation, options) ->
    $element = $(elementOrSelector)
    options = u.options(options, defaultOptions)
    if u.isFunction(animation)
      assertIsPromise(
        animation($element, options),

  
  u = up.util
  
  config =
    duration: 300
    delay: 0
    easing: 'ease'
