v0.6.0

• Trained models can now be transpiled into R, PowerShell and PHP. Major effort delivered solely by @StrikerRUS .
• In Java interpreter introduced a logic that splits code into methods that is based on heuristics and which doesn't rely on SubroutineExpr from AST.
• Added support of LightGBM and XGBoost Random Forest models.
• XGBoost linear models are now supported.
• LassoLarsCV, Perceptron and PassiveAggressiveClassifier estimators from scikit-learn package are now supported.