0.18.8: Update build tools

• Update build tools to ensure npm run build works on windows.

0.18.7: Add merge() fusion

• Add fusion for merge() and mergeArray()
  • Nested merge structures, like merge(a, merge(b, c)), a.merge(b).merge(c), or mergeArray([a, merge(b, c), d.merge(e)] are flattened into a single node in the stream graph. There's now zero performance difference in a.merge(b).merge(c).merge(d) and mergeArray([a, b, c, d])

0.18.6: Fix multicast import from ES6

• Fix multicast ES6 import into ES5 code

0.18.5: Fix multicast error handling for real

• Fix bug that could allow an error in one observer of a multicasted stream to impact its other observers.
  • 0.18.4 did not include the multicast fix due to a failed merge (possible github UI issue)

0.18.4: Fix multicast error handling

• Fix bug that could allow an error in one observer of a multicasted stream to impact its other observers.

0.18.3: Fix sample + fromPromise + just

• Fix race condition when using sample with streams created by just and fromPromise with an already fulfilled promise.

0.18.2: Fix delay()

• Fix for subtle issue with delay() that could cause events to be dropped.

0.18.1: Fix scheduler issue

• Fix scheduler issue that could cause debounce to interfere with other time-based combinators.
• Deprecate cycle.

0.18.0: Use native Promise

• Improve merge performance almost 2x
• Use global Promise. Bring your favorite Promise polyfill.
• Decrease built size by 3k min+gzip bytes.
• Add mergeArray and combineArray to public API.
• Improve stream disposing, ensuring all disposers are invoked even in the face of thrown exceptions and promise rejections.
• Improve recoverWith and cycle.

0.17.1: Remove `await` ES7 identifier conflict

• Remove internal identifier name conflict with ES7 keyword await.
• No functional or API changes.