incremented revision in init

0.10 release

Benchmark updates for pypy 4.0.1

0.9.0 release

status

README update

add support for _to*Convertor derived classes

* Final clean-up moved to _cleanup() method
* adding _convert_filter() method

pypy 1.9

--HG--
branch : 0.8-dev

pypy 1.8

--HG--
branch : 0.8-dev

pypy 1.7

--HG--
branch : 0.8-dev