Added

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* A CHANGELOG.md file.
* New vision datasets: FC100, tiered-Imagenet, FGVCAircraft, VGGFlowers102.
* New vision examples: Reptile & ANIL.
* Extensive benchmarks of all vision examples.

Changed
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* Re-wrote TaskDataset and task transforms in Cython, for a 20x speed-up.
* Travis testing with different versions of Python (3.6, 3.7), torch (1.1, 1.2, 1.3, 1.4), and torchvision (0.3, 0.4, 0.5).
* New Material doc theme with links to changelog and examples.

Fixed
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* Support for `RandomClassRotation` with newer versions of torchvision.
* Various minor fixes in the examples.
* Add Dropbox download if GDrive fails for FC100.

First public release.