[Gnumed-update] - self._backend -> self._conn_pool [...]

[ihaywood]

Commit from ncq (2004-06-15 15:08 EDT)
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- self._backend -> self._conn_pool
- remove instance level self._ro_conn_clin
- cleanup

  gnumed  gnumed/client/business/gmClinicalRecord.py  1.119


Commit from ncq (2004-06-15 15:14 EDT)
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- add cleanup() to current patient calling gmPerson.cleanup()

  gnumed  gnumed/client/business/gmPatient.py  1.44


Commit from ncq (2004-06-15 15:18 EDT)
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- _unlisten_notification() now accepts a list of notifications to unlisten from
- cleanup/enhance __del__
- slightly untighten notification handling loop so others
  get a chance to grab the connection lock

  gnumed  gnumed/client/pycommon/gmBackendListener.py  1.5