Axondeepseg

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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.

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**Added:**

- Compatibility for image inputs other than png
- Pre-processing of input images is now done inside AxonDeepSeg

**Changed:**

- Help display when running AxonDeepSeg from terminal