Version 0.5-0.5.2
-----------------

    - Changed skompile call signature
    - Fixed Excel code generation
    - Changed SQLAlchemy translator
    - multistage=True is the default now for SQL and Excel
    - Improved code organization
    - Nicer DSL for generating SKAST, basic symbolic processing and type checking
    - New algorithms: AdaBoostClassifier, KMeans, PCA, MLPClassifier, MLPRegressor,
      Normalizer, StandardScaler, MinMaxScaler, MaxAbsScaler, Binarizer
    - (0.5.1) Rudimentary support for Keras MLP models.
    - (0.5.2) Fixes issue #1

Version 0.4
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    - More logical set of SK AST nodes, proper handling of Let nodes
    - Support for Pipeline objects

Version 0.3-0.3.1
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    - Multi-stage Excel code generation

Version 0.2
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    - Multi-stage SQL code generation

Version 0.1
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    - First prototype. Supports:
      * Inputs: linear models, trees, random forest and gradient boosting (partial)
      * Outputs: string, python, excel, sqlalchemy, sympy

