Adds factory function, sync functionality, tagged state, react/preact integrations, speed improvements, better test coverage

• Use a more popular deep clone library for better stability
• Use a newer version of object-bystring with a more modern implementation
• Full Typescript support
• Adds removeAll and removeAllOf methods to handle attached listeners
• Better documentation
• More tests
• update class name to be Capitalized substate is now Substate

Simply bumping dependency versions

Clarified a few things in readme and updated the package to remove dev dependencies.

emit now passes an empty object as data by default.

You can now emit('CHANGE_STATE', {requestedState: 2}) and change your state. This allows you to undo and redo!

Version 7 was a bust. I wrote some unit tests which were poor and missed a huge bug. So I had to revert from my plans and push out a fixed version asap.

Sorry to anyone who got screwed with v7

We now have middleware for updating the state. You can add an optional function to the config for beforeUpdate and afterUpdate to have access the the entire store/substate instance. This is great for making saves to local state, stopping state updates if you need to, etc.

I switched to a much smaller deep cloning dependency and now the project is half the size!