Axondeepseg

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**Changed:**

- Upgraded ADS for Python 3.6-compatibility (no longer supporting Python 2.7)
- Minor changes to make ADS Windows-compatibile
- Removed plot hold commands (deprecated)

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**Changed:**

- Minor Mac OSX-related bug fix
- Changed installation requirements to exact release versions

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Versions 1.x will remain Python 2.7-compatible

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**Added:**

- Comprehensive testing suite
- Bug tracking (Sentry)
- Blue-red visualisation function for segmented masks

**Changed:**

- Dataset building and training notebook
- Minor documentation improvements
- Minor bug fixes

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**Added:**

- GIMP procedure for ground truth labelling or segmentation correction added in the documentation.
- Compatibility with tiff images.
- Continuous integration with Travis is now supported.

**Changed:**

- The documentation website is now hosted on ReadTheDocs.
- Updated documentation on the usage of AxonDeepSeg.
- Change of axon and myelin masks filenames for better clarity.