Removes attempt to animate centerX & centerY along with width and height respectively, when the change in width or height is less than 2 px and wouldn't cause the margin-left & margin-top layout styles to actually change.
Fixes up the BOUNCE_ADJUST and SPRING_ADJUST transitions to work properly.  Adds extra options: `bounces` & `springs` to set the number of each.
Updates the documentation for all of the adjust transitions to indicate the available options.