Enable github two-factor authentication; fixes #5252
Updates to two-factor authentication.
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
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.
Merge pull request #8239 from danluu/code_native_segfault

Fix segfault when code_llvm or code_native are called on a C function
Fix #8242
Makefile changes to build on ARM
More changes to get through bootstrap
Make.inc: update arm ARCH sections for latest trunk
Add arm specific configuration to help in the port.
fix conditional for -mBINARY, not supported by arm gcc
temp: Add dummy cpuid for ARM