For a 1.3 release

[ablaom]

#968 #975 #973 #969

[ablaom]

For the release notes:

• (Performance enhancement) Remove type instability for predict(mach::Machine, ...) in the easy and typical case that mach does not wrap a Symbol model (Address some predict/transform type instabilities #969)

• (New feature) Give evaluate and evaluate! the option compact=true, to return a CompactPerformanceEvaluation object with minimal memory footprint (Add CompactPerformanceEvaluation objects and the option in evaluate! to construct them #973)

• (New feature) Add an InSample() resampling strategy that trains and tests on the same data (whatever is specified by rows, or all supplied data) (Add InSample resampling strategy #975)

• (Display improvement) Split the table displayed as part of an PerformanceEvaluation object over two tables, if needed, to deal with overly wide tables (Add CompactPerformanceEvaluation objects and the option in evaluate! to construct them #973)