plugin invitation: pubsub invitations: - new Pubsub invitation plugin, to have a generic way to manage invitation on Pubsub based features - `invitePreflight` and `onInvitationPreflight` method can be implemented to customise invitation for a namespace - refactored events invitations to use the new plugin - a Pubsub invitation can now be for a whole node instead of a specific item - if invitation is for a node, a namespace can be specified to indicate what this node is about. It is then added in `extra` data - an element (domish.Element) can be added in `extra` data, it will then be added in the invitation - some code modernisation

.. _contribuing:

===========
contribuing
===========

This part of the documentation is for people willing to contribute to the development of
Salut à Toi and its ecosystem, it is not needed to read this if you only plan to use the
software.

.. toctree::
   :glob:
   :maxdepth: 2

   testing