[IMP-dev] ParticleRefiner->Refiner

To shorten the names (and since it was trivial) ParticleRefiner has become Refiner. If you use them explicitly anywhere, run this to update your code: sed -i.old "s#ParticleRefiner#Refiner#g" `find * -name *.py -or -name *.cpp -or -name *.h`

A better name would be appreciated and any suggestions are welcome.