[IMPROVEMENT] Replace Moment with Luxon #375

Replaces Moment with Luxon. The benefit of this is to have a simpler library with less magic and an immutable API as well as a minor performance improvement.

NOTICE

@@ -20,12 +20,11 @@ contributors:
   * License: licenses/LICENSE.jquery.mit.txt (MIT License)
   * Homepage: https://jquery.org/
 
-
-This product contains Moment.js, distributed by JS Foundation and other
+This product contains Luxon, distributed by JS Foundation and other
 contributors:
 
-  * License: licenses/LICENSE.moment.mit.txt (MIT License)
-  * Homepage: http://momentjs.com/
+  * License: licenses/LICENSE.luxon.mit.txt (MIT License)
+  * Homepage: https://moment.github.io/luxon/
 
 This product contains Vue.js, distributed by Yuxi (Evan) You and other
 contributors:

licenses/LICENSE.moment.mit.txt → licenses/LICENSE.luxon.mit.txt

@@ -1,4 +1,4 @@
-Copyright (c) JS Foundation and other contributors
+Copyright 2019 JS Foundation and other contributors
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation

promgen/static/js/promgen.vue.js

@@ -167,8 +167,8 @@ Vue.filter("urlize", function (value) {
     return linkifyStr(value);
 });
 
-Vue.filter("time", function (value, fmtstr = "YYYY-MM-DD HH:mm:ss") {
-    return moment(value).format(fmtstr);
+Vue.filter("time", function (value, fmtstr = "yyyy-MM-dd HH:mm:ss") {
+    return luxon.DateTime.fromISO(value).toFormat(fmtstr);
 });
 
 Vue.component("promql-query", {

promgen/templates/base.html

@@ -30,8 +30,8 @@
   <script src="{% static 'js/jquery.selection.js' %}"></script>
   <script src="{% static 'js/bootstrap.min.js' %}"></script>
   <script src="{% static 'js/bootstrap3-typeahead.min.js' %}"></script>
-  <script src="{% static 'js/moment.min.js' %}"></script>
   <script src="{% static 'js/bootstrap-switch.min.js' %}"></script>
+  <script src="{% static 'js/luxon.min.js' %}"></script>
   <script src="{% static 'js/linkify.min.js' %}"></script>
   <script src="{% static 'js/linkify-string.min.js' %}"></script>
   <script src="{% static 'js/vue.min.js' %}"></script>

promgen/templates/rest_framework/api.html

@@ -28,7 +28,7 @@
 <script src="{% static 'js/jquery.selection.js' %}"></script>
 <script src="{% static 'js/bootstrap.min.js' %}"></script>
 <script src="{% static 'js/bootstrap3-typeahead.min.js' %}"></script>
-<script src="{% static 'js/moment.min.js' %}"></script>
+<script src="{% static 'js/luxon.min.js' %}"></script>
 
 <script src="{% static 'rest_framework/js/ajax-form.js' %}"></script>
 <script src="{% static 'rest_framework/js/csrf.js' %}"></script>