refactored the code for benchmarking.
this will make more benchmarking easier.
fixed benchmark for the code in R.
- figure for benchmark now generated by benchmarks.py
- snippets of code in the doc extracted from benchmarks.py
- references to psyco are gone
typo
last performance table was with psyco. now removed.
more automation for the benchmark (speedup computation)
more text
[mq]: C-interface
imported patch build_and_install
Drop the use of distribute / use_2to3: too much voodoo needed to make it work.

Now it uses its own custom 2to3 conversion (basic for the moment)
NEWS entry: Python is becoming supported ! (Thanks to Greg for his work,
and Google for sponsoring Greg's work)
Fix unit test for Python 3 by forcing the sequence to be a tuple.
Replaced usage of parameter cmp with key
integer division // when computing an index
docstrings for vectors
more use of importr (rather than the "R" singleton) in the doc
"please wait" message when running 2to3 over the Python files
doc about running tests for robjects or rinterface
doc:
Bumped up the recommended R versions.
Added a note about emerging support of Python 3
doc:
note about Python-dev required
Forced directory for the python package rpy2 to be identical when
running a subprocess.
(note: the mysterious error is then triggered
ImportError: /usr/local/lib/python3.1/dist-packages/rpy2/rinterface/rinterface.so: undefined symbol: _Py_FalseStruct
)