Create doxygen documentation thus:
$ cd docs
$ doxygen ipaacaCpp.Doxyfile

Important: Java version does not yet contain
  Messages (or Retraction, for that matter)
Note: Messages are received and routed to the
  handlers with the special new MESSAGE event
  type, as opposed to ADDED. This decision is
  of course open for discussion.
Additional bugfix: Typecasting conflict in C++
  payloads fixed. Reverted to cstdlib casts
  to avoid bulky exceptions being thrown.

Important: Java version does not yet contain
  Messages (or Retraction, for that matter)
Note: Messages are received and routed to the
  handlers with the special new MESSAGE event
  type, as opposed to ADDED. This decision is
  of course open for discussion.

Defaults from /etc/rsb.conf and ~/.config/rsb.conf were falsely erased, fixed.

Fixed ipaacaspam.py test. Improved .gitignore