Add cython to install script (#3215)
Add cython to install script (#3215)

So that pip-installing fastparquet from master works (was previously
conda-installed).
jakirkham/dask,ContinuumIO/dask,mrocklin/dask,jakirkham/dask,dask/dask,ContinuumIO/dask,mrocklin/dask,jcrist/dask,jcrist/dask,dask/dask,blaze/dask,blaze/dask