Raytracer benchmark
fix #3807
fix #3810
Merge pull request #3811 from IainNZ/master

Raytracer benchmark
fix #3789
Merge branch 'master' of github.com:JuliaLang/julia
faster digit printing for large bases; simplify the base function.
rand methods for small integer types (Int8, Uint8, Int16, Uint16).
UUID type: generate version 4 UUIDs and stringify them.
Merge branch 'master' of github.com:JuliaLang/julia
Add profile.c to src/ and build it.

This keeps the Julia code in a package, until Windows support is ready.
Added ByteOrder type for reading integers, floats, complex, arrays, and bitarrays
add additional tests for scalars and floats
Merge pull request #3633 from simonbyrne/byteorder

RFC: ByteOrder types for io
Merge github.com:JuliaLang/julia