v0.2.0

• #14: Use takeUntil internally (instead of a faulty custom operator)

  While this fixes some intractable problems that could occur with the old system, it also includes a major behavior
  change: when the bind decides to stop subscribing, it calls onCompleted (whereas before it would just
  unsubscribe).

  When upgrading, you should check that your usages of onCompleted (either in subscribe(), doOnCompleted(),
  or doOnTerminate()) can handle the sequence ending due to the lifecycle bind.

  If you still need the old behavior in some spots, you should handle the Subscription yourself manually (and call
  unsubscribe() when appropriate).

• #16: Lowered minSdkVersion to 14