Dvha

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- [GUI] Edge backend available for MSW (wxpython >=4.1.1)
- [GUI] Only visible plots are redrawn on window resizing
- [Import] Closing import progress, DICOM Import, or main windows terminate file parsing threads
- [Database Admin] Fixed bug preventing delete by study by StudyInstanceUID [Issue 135](https://github.com/cutright/DVH-Analytics/issues/135)

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- [Import] Use default DVH calc if high resolution fails [Issue 133](https://github.com/cutright/DVH-Analytics/issues/133)

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- [PyPI] Allow dicompyler-core 0.5.5, since 0.5.6 is not on PyPI

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- [Database] Added centroid_dist_to_iso_min and centroid_dist_to_iso_max columns to DVHs table
- [Linting] Applied Black code style
- [Docs] Backend documentation at [dvha.readthedocs.io](http://dvha.readthedocs.io)
- [Import] Resolve import crash when DICOM-RT Plan is missing FractionGroupSequence [Issue 127](https://github.com/cutright/DVH-Analytics/issues/127)
- [GUI] Allow for smaller window sizes, set min resolution to 1200 x 700 [Issue 123](https://github.com/cutright/DVH-Analytics/issues/123)
- [Import] Handle NumberOfFractionsPlanned when stored as a string [Issue 131](https://github.com/cutright/DVH-Analytics/issues/131)

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- [Import] Check for dicompyler-core version before using 'memmap_rtdose' [Issue 128](https://github.com/cutright/DVH-Analytics/issues/128)

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- [Options] Clicking 'Cancel' in user options properly reloads options from file now
- [Import] High resolution DVH calculation with interpolation for small volume ROIs [Issue 119](https://github.com/cutright/DVH-Analytics/issues/119)
- [Import] DVHs in the SQL DB now store 5 decimals instead 2 [Issue 119](https://github.com/cutright/DVH-Analytics/issues/119)
- [Import] Use dicompyler-core's memory mapping on dvh calculation MemoryError [Issue 119](https://github.com/cutright/DVH-Analytics/issues/119)
- [ROI Map] Allow commas in roi names [Issue 121](https://github.com/cutright/DVH-Analytics/issues/121)