Improvements - Fluid Topics - 5.3

Automatically sets a rel="canonical" header on the responses to requests that serve the content of unstructured documents. The rel="canonical" points to the associated Viewer page.

Sanitizes page description to avoid custom script usage in inner HTML.

Makes it possible to save the current portal configuration before importing another portal's configuration in the Configuration management menu.

Adds dedicated "Order by" labels for the different My Library page types.