Release/v0.2.1 (qubvel#107)

 - Added `set_regularization` function  
 - Added `beta` argument to dice loss  
 - Added `threshold` argument for metrics  
 - Fixed `prerprocess_input` for mobilenets  
 - Fixed missing parameter `interpolation` in `ResizeImage` layer config  
 - Some minor improvements in docs, fixed typos

Merge pull request qubvel#53 from qubvel/release

Release 0.2.0

Merge branch 'release'

release 0.1.1

pip package