[entity] comparing two entities returns NotImplemented
Fixes a test when using some versions of unittest2, where
assertItemsEqual tries a sort and expects TypeError, which it doesn't
get if we directly raise NotImplementedError. The NotImplemented value
is treated specially by the interpreter:
https://docs.python.org/3.4/library/constants.html#NotImplemented
include *.py
include */*.py
recursive-include data *.gif *.png *.ico *.css *.js
recursive-include i18n *.po
recursive-include wdoc *