Remove PropType usage from addons to prevent React 15.5.x deprecation warnings.
Added configurable teardown method to the Microcosm prototype. This behaves similarly to teardown methods on other Microcosm classes.
Fixed a bug where the first action dispatched would always fire a change event, even if state didn't change.
The first argument of repo.push is passed into the open state of actions that return promises.
Action status changing methods are auto-bound, and will warn when a completed action attempts to move into a new state (strict mode only)
Added batch as an option when instantiating Microcosm. When set to true, high frequency change events will be batched together using requestIdleCallback. When not available, it falls back to setTimeout.

Auto-bound action status methods

Action status methods like action.resolve() and action.reject() are auto-bound. They can be passed directly into a callback without needing to wrap them in an anonymous function.

This is particularly useful when working with AJAX libraries. For example, when working with superagent:

Instead of:

import superagent from 'superagent'

function getPlanets() {
  return action => {
    let request = superagent.get('/planets')

    request.on('request', data => action.open(data))
    request.on('progress', data => action.update(data))
    request.on('abort', data => action.cancel(data))

    request.then(data => action.resolve(data), error => action.reject(error))
  }
}

You can do:

import superagent from 'superagent'

function getPlanets() {
  return action => {
    let request = superagent.get('/planets')

    request.on('request', action.open)
    request.on('progress', action.update)
    request.on('abort', action.cancel)

    request.then(action.resolve, action.reject)
  }
}