* Improve performance by 90% (almost twice as fast)
* Fix cancellation semantics (per-fork cancellation)
* Improve toString and inspect to show the state (similar to Promises)

* Improves performance by about 10%
* Improves toString

* Improve performance by about 10%
* Improve toString

* Improve performance by about 10%
* Improve toString

* Improve performance by about 300% overall
* Improve performance by about 3700% in the case where left
  resolves synchronously
* Improve toString

* Improve performance by 10-40%
* Improve toString
* When left resolves before right, right will be automatically cancelled

But keep inspect the same

Now when a hooked Future is cancelled, its disposal Future is
still executed, and immediately cancelled as well. This creates
a much better chance for resources to be disposed, and allows
a developer to forcefully get rid of resources in a much more
logical place: The disposal cancellation function instead of
the consumpsion cancellation function.
Also improve toString and probably performance.

Impoves toString

An average increase in speed of 30% with cases ranging
between 10% and 100%

* Use switch-statements instead of if-statements for argument length
* Do recursion via the name of the function rather than its location
* Move the type-check to after currying, so it doesn't happen multiple times

Also improve performance by about 5%