removing python2.3

[Matthias Klose <doko@cs.tu-berlin.de>]

With zope2.8 removed, the last package depending on python2.3 is gone,
so we are technically able to drop the support for python2.3.  As
currently some packages have reverse dependencies on python2.3,
removing python2.3 without any other action, would open new RC reports
which doesn't seem to be appropriate at this point.  The following
issues should be fixed before:

 1) removing packages only needed for python2.3:

     python-fixedpoint (replaced by decimal)
     python-cjkcodecs
     python-iconvcodecs (maybe)
     decompyle (2.3 only)

 2) fixing packages having hardcoded dependencies on 2.3:
   i.e. optcomplete, will need a rebuild, of the archive / part
   of the archive to identify those packages.

 3) removing the rdepends from packages (likely to be packages using
   the versioned interpreter name)

	vegastrike
	subterfugue
	serpento
	rekall
	python2.3-lasso (not yet converted?)
	python2.3-dictdlib (not yet converted?)
	python-zodb
	python-wxgtk2.4
	python-quixote
	python-pypoker-eval
	python-pymetar
	python-poker2d
	python-poker2d
	python-poker-network
	python-plplot
	python-nautilus
	python-metakit
	python-libhamlib2
	pycocuma
	papaya
	lodju
	libhk-kdeclasses7
	knoda
	k3d
	gnome-mud
	ghextris
	gaby
	duplicity
	dcgui
	crossfire-server
	capisuite
	bacula-sd
	bacula-fd
	bacula-director-sqlite3
	bacula-director-sqlite
	bacula-director-pgsql
	bacula-director-mysql

 - some package have to be updated to drop 2.3 support; I put updated
   packages at 

	deb http://people.debian.org/~doko/python ./

   If more packages are needed for testing the removal of python2.3,
   I'll add these to this archive.

 - rebuild extension packages to drop 2.3 extensions.

2 and 3 can be done now and would be a prerequisite for the python2.3
removal.

  Matthias