* Changed model structure and configuration (with default_config() and build_config())
* Added ready to use TensorFlow models: VGG, Inception v1, v3, v4, ResNet, MobileNet, SqueezeNet, DenseNet, FCN32, FCN16, FCN8, UNet, LinkNet.
* Added new layers: fractional_max_pooling.
* Dimensionality for all layers is now inferred from the input tensor shape.
* Added fake njit decorator for environments without numba installed.