allow project administrator to delete feature

src/views/feature/Feature_detail.vue

@@ -42,7 +42,7 @@
                   <i class="inverted grey pencil alternate icon" />
                 </router-link>
                 <a
-                  v-if="isFeatureCreator && isOnline"
+                  v-if="((permissions && permissions.can_update_feature) || isFeatureCreator) && isOnline"
                   id="feature-delete"
                   class="ui button button-hover-red"
                   @click="isCanceling = true"