This feature is based general.enable_async_metadata setting and works with existing metadata.js file.
The script is compatible with any template:
- the thumbnail div bloc must have attribute
- the bookmark bloc must have attribute with the bookmark ID as value
Fixes#1564
XSS vulnerabilities fixed in editlink, linklist, tag.cloud and tag.list.
Also fixed tag search with special characters: urlencode function needs to be applied on raw data, before espaping, otherwise the rendered URL is wrong.