Improved OPDS compability (#579)

Bootstrap-table loads locally and no longer from CDN
Localized commit date on admin page

cps/templates/feed.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom">
+<feed xmlns="http://www.w3.org/2005/Atom" xmlns:dcterms="http://purl.org/dc/terms/">
   <id>urn:uuid:2853dacf-ed79-42f5-8e8a-a7bb3d1ae6a2</id>
+  <updated>{{ current_time }}</updated>
   <link rel="self"
         href="{{request.script_root + request.full_path}}"
         type="application/atom+xml;profile=opds-catalog;type=feed;kind=navigation"/>
@@ -42,7 +43,7 @@
     <author>
       <name>{{entry.authors[0].name}}</name>
     </author>
-    <language>{{entry.language}}</language>
+    <dcterms:language>{{entry.language}}</dcterms:language>
     {% for tag in entry.tags %}
     <category scheme="http://www.bisg.org/standards/bisac_subject/index.html"
               term="{{tag.name}}"

cps/templates/index.xml

@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <feed xmlns="http://www.w3.org/2005/Atom">
   <id>urn:uuid:2853dacf-ed79-42f5-8e8a-a7bb3d1ae6a2</id>
+  <updated>{{ current_time }}</updated>
   <link rel="self" href="{{url_for('feed_index')}}" type="application/atom+xml;profile=opds-catalog;kind=navigation"/>
   <link rel="start" title="{{_('Start')}}" href="{{url_for('feed_index')}}"
         type="application/atom+xml;profile=opds-catalog;kind=navigation"/>
-  <link title="{{_('Search')}}" type="application/atom+xml" href="{{url_for('feed_normal_search')}}?query={searchTerms}" rel="search"/>
+  <link title="{{_('Search')}}" type="application/opensearchdescription+xml" href="{{url_for('feed_normal_search')}}?query={searchTerms}" rel="search"/>
   <title>{{instance}}</title>
   <author>
     <name>{{instance}}</name>
@@ -14,24 +15,28 @@
     <title>{{_('Hot Books')}}</title>
     <link rel="http://opds-spec.org/sort/popular" href="{{url_for('feed_hot')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_hot')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Popular publications from this catalog based on Downloads.')}}</content>
   </entry>
   <entry>
     <title>{{_('Best rated Books')}}</title>
     <link rel="http://opds-spec.org/recommended" href="{{url_for('feed_best_rated')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_best_rated')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Popular publications from this catalog based on Rating.')}}</content>
   </entry>
   <entry>
     <title>{{_('New Books')}}</title>
     <link rel="http://opds-spec.org/sort/new" href="{{url_for('feed_new')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_new')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('The latest Books')}}</content>
   </entry>
   <entry>
     <title>{{_('Random Books')}}</title>
     <link rel="http://opds-spec.org/featured" href="{{url_for('feed_discover')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_discover')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Show Random Books')}}</content>
   </entry>
 {% if not current_user.is_anonymous %}
@@ -39,6 +44,7 @@
     <title>{{_('Read Books')}}</title>
     <link rel="subsection" href="{{url_for('feed_read_books')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_read_books')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Read Books')}}</content>
   </entry>
 {% endif %}
@@ -46,30 +52,35 @@
     <title>{{_('Unread Books')}}</title>
     <link rel="subsection" href="{{url_for('feed_unread_books')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_unread_books')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Unread Books')}}</content>
   </entry>
   <entry>
     <title>{{_('Authors')}}</title>
     <link rel="subsection" href="{{url_for('feed_authorindex')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_authorindex')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Books ordered by Author')}}</content>
    </entry>
    <entry>
     <title>{{_('Category list')}}</title>
     <link rel="subsection" href="{{url_for('feed_categoryindex')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_categoryindex')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Books ordered by category')}}</content>
    </entry>
    <entry>
     <title>{{_('Series list')}}</title>
     <link rel="subsection" href="{{url_for('feed_seriesindex')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_seriesindex')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Books ordered by series')}}</content>
    </entry>
    <entry>
     <title>{{_('Public Shelves')}}</title>
     <link rel="subsection" href="{{url_for('feed_shelfindex', public="public")}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_shelfindex', public="public")}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_('Books organized in public shelfs, visible to everyone')}}</content>
    </entry>
    {% if not current_user.is_anonymous %}
@@ -77,6 +88,7 @@
     <title>{{_('Your Shelves')}}</title>
     <link rel="subsection" href="{{url_for('feed_shelfindex')}}" type="application/atom+xml;profile=opds-catalog"/>
     <id>{{url_for('feed_shelfindex')}}</id>
+    <updated>{{ current_time }}</updated>
     <content type="text">{{_("User's own shelfs, only visible to the current user himself")}}</content>
    </entry>
    {% endif %}

cps/templates/tasks.html

@@ -1,6 +1,6 @@
 {% extends "layout.html" %}
 {% block header %}
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.8.1/bootstrap-table.css">
+<link href="{{ url_for('static', filename='css/libs/bootstrap-table.min.css') }}" rel="stylesheet">
 {% endblock %}
 {% block body %}
 <div class="discover">
@@ -26,7 +26,7 @@
 </div>
 {% endblock %}
 {% block js %}
-<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.8.1/bootstrap-table.js"></script>
+<script src="{{ url_for('static', filename='js/libs/bootstrap-table/bootstrap-table.min.js') }}"></script>
         <script>
             $('#table').bootstrapTable({
                formatNoMatches: function () {