[Nexus] Release of NeXpy v0.12.2

[Osborn, Raymond]

NeXpy v0.12.2 has just been released, and the underlying nexusformat API has been updated to v0.5.1. It is available on PyPI and conda-forge. 

This includes a significant number of new features not available in v0.12.0:

* An extension to the Limits panel to allow multiple plots to be automatically synchronized.
* A new scan panel to plot projections in multiple NeXus files against a parametric variable such as temperature.
• An extension of the Plot Data command to allow scalar quantities, such as a lattice parameter, to be plotted across multiple files.
* An extension to the Customize Panel to add the ability to scale and/or add an offset to 1D plots to allow dynamic comparisons of multiple data sets.
• Fixes for PyQt5 bugs on Mac OS that fail to repaint widgets after programmatic changes. 

These changes are documented on the NeXpy Home Page  and in the release notes (see below).

Jupyter Notebook
----------------
A tutorial on using the nexusformat API is available as a Jupyter Notebook. It can be accessed online in a Google colaboratory:

https://colab.research.google.com/github/nexpy/nexusformat/blob/master/src/nexusformat/notebooks/nexusformat.ipynb

Installation
--------------
NeXpy is available on both the Python Package Index server and Anaconda, using

 $ pip install nexpy

or 

 $ conda install -c conda-forge nexpy

Please report any bugs to the Github issues page. Other questions can be addressed to the NeXus Mailing List <nexus at nexusformat.org>. 

NeXpy Home Page: https://nexpy.github.io/nexpy/
NeXpy Github: https://github.com/nexpy/nexpy
NeXpy Release Notes: https://github.com/nexpy/nexpy/releases

Ray Osborn
-- 
Ray Osborn, Senior Scientist
Materials Science Division
Argonne National Laboratory
Argonne, IL 60439, USA
Phone: +1 (630) 252-9011
Email: ROsborn at anl.gov