Renamed 'copyfunc' into 'newfunc' and added the ability to copy the signature from a model function; improved '_decorator' to set the '__module__' attribute too, with the intent of improving error messages; updated the documentation.
0.6
Changed decorator.__call__ so that the module somewhat works even for Python 2.3 (but the signature-preserving feature is lost).
0.5.2
Minor changes to the documentation; improved `getattr_` and shortened `locked`.
0.5.1
Minor corrections to the documentation.
0.5
Fixed a bug with out-of-the-mind signatures, added a check for reserved names in the argument list and simplified the code (thanks to Duncan Booth).
0.4.1
Fixed a typo in the documentation (thanks to Anthon van der Neut).