[schema] Define a decorator to handle methods override There is a number of external classes (from yams/rql) methods overridden "by hand" in cubicweb/schema.py. Define a single decorator to factor out the pattern. It handles specifying the method name (to avoid conflict with the local namespace) and passing the original method to the new definition when needed.

[bdist_wheel]
universal = 1

[check-manifest]
ignore =
  debian
  debian/*
  cubicweb.spec
  __pkginfo__.py