Update plans for NEXT
WIP refactor Reactor to be initialized
Add some tests for NEXT
Fix tests
Implement initialize(initState)

TODO: Make this work correctly with state.withMutations
Refactor ChangeStream to simply an EventEmitter

This decision was made for simplicity sake as well as trying to reduce
the library size by not needing to include all Node Stream modules.  If
one would like to utilize streams to interact with a Nuclear Reactor it
is simply a matter of wrapping the changeEmitter in a writable stream.
Cleanup dependencies, use lodash instead of underscore

Update to ImmutableJS 2.5.0