Feature Request

[sean-au]

Sal would be much easier to use if the following options which are set with data tags can be configured when initialising the library with javascript
data-sal-duration
data-sal-delay
data-sal-easing

e.g.
sal({
  threshold: 1,
  once: false,
  duration: 1000,
  delay: 1000,
  easing: 
});