Control: internalized ParallelizeElements/Order
Special Functions: BetaRegularized always returns result (after reaching eps or 140 iterations)
Test: slightly relax evd test (mkl), Control.UseNativeMKL(with params)
Threading: CommonParallel internalized
Cosmetics
Random: all RNGs must provide static Sample(values) function to fill existing array
Distributions: shortcut static sample functions (continuous)
Distributions: shortcut static sample functions (discrete)
Distributions: upgrade to simpler parameter verification (discrete)
Tests: Use Assert.That for exception tests
Throw ArgumentException instead of ArgumentOutOfRangeException where it was used without parameter arg