Release notes

docs/RELEASENOTES

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+RELEASE NOTES for berry v.0.2
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+New in 0.2 version:
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+- Improved velocity up to 10x in generate.py and other programs
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+- More reliable preprocessing.py and resilient to QE changes
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+- Calculates the Berry curvature
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+- Uses less disk space
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+- All programs are now written in python
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+- Output from programs more readable, and more information
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+- Conformity to PEP8 was achieved
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+Fixed in 0.2 version:
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+- Some small bugs were fixed
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+
+Incompatible changes in 0.2 version:
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+- Since most of the files are now saved in a different format, the new version cannot read the old data files in general
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+- The numbering of the bands is now from 0 to n-1 while in the previous version it was from 1 to n.
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+- The some extensions of the output files are different
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+