Add replies.

src/components/post_status_form/post_status_form.js

@@ -1,16 +1,20 @@
 import statusPoster from '../../services/status_poster/status_poster.service.js'
 
 const PostStatusForm = {
-  data() {
+  props: [
+    'replyTo'
+  ],
+  data () {
     return {
       newStatus: { }
     }
   },
   methods: {
-    postStatus(newStatus) {
+    postStatus (newStatus) {
       statusPoster.postStatus({
         status: newStatus.status,
-        store: this.$store
+        store: this.$store,
+        inReplyToStatusId: this.replyTo
       })
       this.newStatus = { }
     }