ClioPatria cpack swish -- Add Prolog interaction to ClioPatria

Make the SWI-Prolog SWISH package available as a ClioPatria cpack. SWISH brings a Prolog interface to ClioPatria, providing:

• Ask RDF queries about our data
• Make example programs available about your data
• Save an example program and share it with anyone on the web
• Collaborate on a program using TogetheJS
• Manage a server remotely from the Prolog shell (requires login with admin rigths).

This package is just a first preview. We have many plans for making this more powerful and friendly.