Bug#752293: src:python-chameleon: missing license information (Python License)

[Ansgar Burchardt]

Source: python-chameleon
Version: 2.6.1-2

License information for at least these files is missing from
d/copyright:

Chameleon-2.16/src/chameleon/ast25.py
# Copyright 2008 by Armin Ronacher.
# License: Python License.

Chameleon-2.16/src/chameleon/tokenize.py
# http://code.activestate.com/recipes/65125-xml-lexing-shallow-parsing/
# by Paul Prescod
# licensed under the PSF License

Ansgar