Implement grisu algorithm in native Julia.
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu
Export the grisu method to allow importing by Printf module. Should fix travis failure.
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu
realmax(Float16) now prints '65500.0' instead of '65504.0' in accordance with the grisu alogrithm (printing the shortest form that can be read back in accurately).
1st attempt at removing all double-conversion library traces.
Add double-conversion LICENSE to grisu folder. Tweak .gitignore
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu

Conflicts:
	deps/Makefile
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu
Add patch for compiling GMP 6.0.0 on OSX
Remove gmp-5.1.3 checksums
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu

Conflicts:
	.travis.yml
	LICENSE.md
	Makefile
	deps/Makefile
	test/runtests.jl
Fix 32-bit overflow in 5^17
Ensure correct unsigned arithmetic promotion between 32-bit/64-bit.
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu

Conflicts:
	deps/Makefile
Add grisu to the test/Makefile to be able to run make test-grisu
Implement cld
Document cld
Merge branch 'master' of https://github.com/JuliaLang/julia into jq/grisu

Conflicts:
	contrib/vagrant/Vagrantfile