plugin events: added eventInvite command as a helper for the complex invitation workflow: when this command is used: - an email invitation is sent with the event node set - invitee's jid is affiliated to event - invitee's jid is affiliated to invitee's node as a publisher - invitee's jid is affiliated to blog's node as a member - invitee's jid is affiliated to every blog's item's comments node as a publisher last affiliation complex operation is currently needed because of the way blogs and comments are handled, but this need to be changed in the future with XEP proposal.

Use this module to temporary store files that need to be integrated to other
projects such as Wokkel.

For example, the changeset that introduced this folder adds RSM (XEP-0059)
support to Wokkel. The files in sat.tmp.wokkel are imported over the initial
wokkel files from sat.plugins.__init__.py