Nbodykit

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* :issue:`628`: FileType and FileCatalog clean up.
* :issue:`630`: Fix wrong shape (length of 6 instead of 3) of complex mesh stored in attrs.
* :issue:`640`: update for pmesh 0.1.56
* :issue:`641`: update for pandas 1.1.

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* :issue:`622`: meshtools sets mu to zero instead of nan when appropriate.
* :issue:`618`: zhist fix
* :issue:`613`: gaussian filter fix (was not applied)
* :issue:`610`: odd multipole and wide angle fix in ConvFFTPower
* :issue:`604`: Allow any glob pattern.

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* :issue:`000`: Update for new dask (csv)
* :issue:`597`: Update docrep.py
* :issue:`596`: Update documentation for NERSC usage. Python 3.5 is no longer supported on NERSC.

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* :issue:`592`: Update for new dask (ndim)
* :issue:`587`: Reserve label == 0 for unconnected particles.
* :issue:`586`: Center the particles in fiber collision
* :issue:`582`: documentation infra update.

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* :issue:`575,576`: Fix bug in painting particles to mesh in CatalogMesh
* :issue:`569`: Upgrade DistributedArray
* :issue:`570`: Add initial Query interface to FileCatalog.
* :issue:`571`: Typo in FKP
* :issue:`573`: Support Gadget variant binary format (with 4 byte header)
* :issue:`574`: DistributedArray.bincount fix
* :issue:`577`: Add doc examples for CVS and ArrayCatalog.
* :issue:`579`: compat-fix for mcfit-0.0.16
* :issue:`581`: compat-fix for sympy-1.4