Link fixes

Fixes reader button visible in detail view
Fix formats to convert (added htmlz)
Fix logger in updater
Added request "v3" of github api on update
Fix quotes parameter on external calls
E-Mail logger working more stable (also on python3)
Routing fixes
Change import in ub

cps/templates/config_edit.html

@@ -159,7 +159,7 @@
       <input type="checkbox" id="config_remote_login" name="config_remote_login" {% if content.config_remote_login %}checked{% endif %}>
       <label for="config_remote_login">{{_('Enable remote login ("magic link")')}}</label>
     </div>
-    {% if goodreads %}
+    {% if feature_support['goodreads'] %}
     <div class="form-group">
       <input type="checkbox" id="config_use_goodreads" name="config_use_goodreads" data-control="goodreads-settings" {% if content.config_use_goodreads %}checked{% endif %}>
       <label for="config_use_goodreads">{{_('Use')}} Goodreads</label>
@@ -176,6 +176,7 @@
       </div>
     </div>
     {% endif %}
+    {% if feature_support['ldap'] %}
     <div class="form-group">
       <input type="checkbox" id="config_use_ldap" name="config_use_ldap" data-control="ldap-settings" {% if content.config_use_ldap %}checked{% endif %}>
       <label for="config_use_ldap">{{_('Use')}} LDAP Authentication</label>
@@ -190,6 +191,8 @@
         <input type="text" class="form-control" id="config_ldap_dn" name="config_ldap_dn" value="{% if content.config_use_ldap != None %}{{ content.config_ldap_dn }}{% endif %}" autocomplete="off">
       </div>
     </div>
+    {% endif %}
+    {% if feature_support['oauth'] %}
     <div class="form-group">
       <input type="checkbox" id="config_use_github_oauth" name="config_use_github_oauth" data-control="github-oauth-settings" {% if content.config_use_github_oauth %}checked{% endif %}>
       <label for="config_use_github_oauth">{{_('Use')}} GitHub OAuth</label>
@@ -220,6 +223,7 @@
         <input type="text" class="form-control" id="config_google_oauth_client_secret" name="config_google_oauth_client_secret" value="{% if content.config_google_oauth_client_secret != None %}{{ content.config_google_oauth_client_secret }}{% endif %}" autocomplete="off">
       </div>
     </div>
+    {% endif %}
       </div>
     </div>
   </div>