title: How can i use vue-moment ( this.$moment) in Vuex?
body: <p>Hello I have a question about vue-moment. How to use in every component this.$moment when i can't use it on Vuex? When i try to make state like 
            </p>
  
  <pre><code>export default new Vuex.Store({
  moment : this.$moment 
  )}
  </code></pre>
  
  <p>I get error TypeError:</p>
  
  <blockquote>
    <p>Cannot read property '$moment' of undefined</p>
  </blockquote>