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
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
fix a couple of FreeBSD compile warnings
refactor flisp compiler to handle internal define much more cleanly
WIP: get new flisp closure representation working
clean up flisp closure changes

- remove setc opcode; no longer needed
- add box and box.l for more efficient heap-allocated bindings
- `captured` flag is no longer used, so we can shrink frames by one slot
- remove dead code in VM
flisp optimization: inline lambdas in head position (i.e. `let`)

not a massive improvement, but does make the front end consistently
around 10% faster.