JS

• Migrated to Kotlin 1.2.10.
• Coroutines library for Kotlin/JS and multiplatform projects (see #33):
  • launch and async coroutine builders.
  • Job and Deferred light-weight future with cancellation support.
  • delay and yield top-level suspending functions.
  • await extension for JS Promise and asPromise/asDeferred conversions.
  • promise coroutine builder.
  • Job() and CompletableDeferred() factories.
  • Full support for parent-child coroutine hierarchies.
  • Window.awaitAnimationFrame extension function.
  • Sample frontend Kotlin/JS application with coroutine-driven animations.
• run is deprecated and renamed to withContext (see #134).
• runBlocking and EventLoop implementations optimized (see #190).