sunny

// Decay class, to call a callback less and less often. For example,
// make an Ajax request and freshen the decay only if the request has changed.
// 
// To start the timeouts, call decay_object.start()
// To freshen up the speed of query, call decay_object.reset()
// 
// Options:
//  - seconds: time between each callback at the start and after a reset() (default 2)
//  - decay: multiplier to use after each callback call (default 1.3)
//  - max: maximum number of seconds to wait between each call (default 42)