release/5.1.4

release/5.1.3

release/5.1.2

release/5.1.1

gh-pages

feature/use-tbb

feature/use-c++11

feature/update-tbb

feature/tests-runit

feature/tbb-solaris

feature/tbb-headers-copy

feature/tbb-2020-update-1

feature/tbb-4-4-update3

feature/standalone-boost-simd

feature/rstudio-template-registration

feature/respect-cxxflags

feature/rcpp-parallel-num-threads

feature/portable-configure

feature/package-skeleton

feature/num-threads-environment-var