message: fix import for EventConfiguration
diff: import request from 'supertest'
  import { CronConnector, HttpConnector, Reshuffle } from '../src'
  -import { BaseConnector } from 'reshuffle-base-connector'
  -import EventConfiguration from 'reshuffle-base-connector/dist/EventConfiguration'
  +import { BaseConnector, EventConfiguration } from 'reshuffle-base-connector'
  describe('Reshuffle', () => {
  describe('create, start and restart', () => {
  