Add level1 and level2 BLAS performance tests.
Fix inv for Triangular{Int}
Fix inv for triangular and diagonal matrices
Merge pull request #3704 from JuliaLang/anj/fixinv

Fix inv for triangular and diagonal matrices
prevent task switches from finalizers during gc, and print error messages generated in finalizers
Merge pull request #3727 from blakejohnson/blas-perf

Add level1 and level2 BLAS performance tests.
fix #3725
Merge branch 'master' of github.com:JuliaLang/julia
Set TK_LIBRARY to be able to use the system Tk library on OS X.
move DISABLE_FLOAT16 to the top of codegen; some uses were not seeing it
Merge branch 'master' of github.com:JuliaLang/julia
No longer copy the Tk libraries as part of the mac dmg.
Merge branch 'master' of github.com:JuliaLang/julia
fix #3729
Merge branch 'master' of github.com:JuliaLang/julia
Merge github.com:JuliaLang/julia