v3.0.0-beta7

Note that the 3.0.0-beta6 release has been abandoned due a problem with the way it was published to the NPM registry.

• Change React and related packages to be peer dependencies. (#75)
• Change simpleMutator to be named mutatorAction (#78)
• Change simpleOrchestrator to be named orchestratorAction (#78)
• Change boundActionCreator to be named action (#78)
• Change orchestrators to be able to return promises, which are exposed to middleware (#79)
• Change mutators to throw if they are async or otherwise returns a value (#79)
• Change mutators to throw if they try to dispatch further actions (#81)