TT#26651 Implement the list in opposite order

What has been done:
- TT#226651, Conversations: User wants to see the list in opposite order
- Remove date from conversation collapsible body

Change-Id: I8eeb6edb9773b784c9b2d034c13d4e4a01e7cb2d

src/api/conversations.js

@@ -4,7 +4,8 @@ import _ from 'lodash';
 import { getJsonBody } from './utils'
 
 export function getConversations(id, page, rows) {
-    let params = { subscriber_id: id, page: page, rows: rows };
+    let params = { subscriber_id: id, page: page, rows: rows,
+        order_by: 'timestamp', order_by_direction: 'desc' };
     return new Promise((resolve, reject) => {
         Vue.http.get('/api/conversations/', { params: params })
             .then(result => {

src/components/pages/Conversations.vue

@@ -9,9 +9,6 @@
                     :sublabel="conversation.start_time | readableDate">
                     <div v-if="isCall(conversation.type) || isVoicemail(conversation.type)">
                         <ul>
-                            <li><strong>
-                                    {{ $t('pages.conversations.card.date') }}:
-                                </strong> {{ conversation.start_time }}</li>
                             <li>
                                 <strong>
                                     {{ $t('pages.conversations.card.duration') }}: