Yet Another object pool in JavaScript
Because yallist is sometimes too featureful, this is a very dead-simple linked-list pool thingie in JavaScript that lets you add and remove objects in a set.
Not suitable for very long lists, because all searches are O(n), but
for small n, it has very low complexity.
p = new Pool()
Constructor takes no arguments
p.add(someObject)
put an object in the pool
p.length
return the number of things in the pool.
p.remove(someObject)
remove that object from the pool.