Espm

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* Fixing the version of traits, hyperspy 2.0.0 is not compatible with traits 6.0.0 and above.

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First patch release

* New notebook to reproduce the results of the paper
* Fixing some minor bugs
* Adding fixed stoichiometries in the G matrix

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First official release

* All important part of the documentation are present
* All main functionality tested

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Third inofficial release

* Test the final process for the first official release 1.0.0

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Second inofficial release

* All important part of the documentation are present
* This is a test before the first official release 1.0.0