coremltools 0.8
- Adds Python 3.5 and 3.6 support
- Fixed compatibility with Keras 2.1.3
- Support for xgboost 0.7
- Fixes: when 1D convolution output is directly fed by flatten layer, Keras converter gives a wrong output shape
- Fixes: Index range bug in keras converter function "make_output_layers()"
- Adds custom activation function support in Keras 2 converter
- Miscellaneous documentation fixes