Paper: PyFAI: a Python library for high performance azimuthal integration on GPU (J. Kieffer - G. Ashiotis)

Hello, 
I am creating a pull request for the paper for the EuroSciPy 2014 proceedings on behalf of the main author Jerome Kieffer and my self, Giannis Ashiotis
Thank you 
"Rietveld refinement" is neither defined here nor a widely known term and as such is not appropriate in the abstract.