Update pcre to 8.35
Bump FFTW to 3.3.4
Enable github two-factor authentication; fixes #5252
Updates to two-factor authentication.
All the julia patches are in FFTW 3.3.4.
Comment out hanging dates tests and move dates even further up in testing
Merge pull request #8202 from JuliaLang/vs/pcre

Update pcre to 8.35
Merge branch 'master' of https://github.com/JuliaLang/julia
Merge pull request #8204 from JuliaLang/vs/fftw

Bump FFTW to 3.3.4
Merge pull request #6668 from JuliaLang/kms/two-factor-auth

RFC: Enable github two-factor authentication; fixes #5252
Add bounds checking to IOBuffer seek, skip code
checks for sparse matrix construction with I,J,V

fixes #8225
fix #8200

segfault due to incorrect serialization of singleton objects with fields.
now we have a more robust approach to this that works as long as
datatype->instance always points to a minimum-size object.
Merge branch 'master' of github.com:JuliaLang/julia
Added message to ArgumentError + tests
Merge pull request #8229 from JuliaLang/kms/iobuffer_bounds_checking

Add bounds checking to IOBuffer seek, skip code (fixes #8193)
Revert "Add bounds checking to IOBuffer seek, skip code (fixes #8193)"
Merge pull request #8237 from JuliaLang/revert-8229-kms/iobuffer_bounds_checking

Revert "Add bounds checking to IOBuffer seek, skip code (fixes #8193)"
Fix segfault when code_llvm or code_native is called on a C function.
Check for specTypes in jl_get_llvmf.