odoo module: attach a url the way a file is attached
Odoo module from the OCA knowledge repository. An attachment can hold a URL
instead of a file: the record carries the link, the chatter shows it as it
shows a document, and nothing is copied into the filestore.

Maintainer: Jean-Gerard Pailloncy <j-g@pailloncy.com>

WWW: https://github.com/OCA/knowledge
