Remove PiecewiseAffine augmentation transform

Closes #125 (closed)

docs/usage/train/parameters.md

@@ -96,7 +96,8 @@ transforms = SomeOf(
         Perspective(scale=(0.05, 0.09), fit_output=True),
         GaussianBlur(sigma_limit=2.5),
         GaussNoise(var_limit=50**2),
-        ColorJitter(contrast=0.2, brightness=0.2, saturation=0.ElasticTransform(alpha=20.0, sigma=5.0, alpha_affine=1.0, border_mode=0),
+        ColorJitter(contrast=0.2, brightness=0.2, saturation=0.2, hue=0.2),
+        ElasticTransform(alpha=20.0, sigma=5.0, alpha_affine=1.0, border_mode=0),
         Sharpen(alpha=(0.0, 1.0)),
         ErosionDilation(min_kernel=1, max_kernel=4, iterations=1),
         Affine(shear={"x": (-20, 20), "y": (0, 0)}),