use shared symlink pkg cache on Windows newer than XP
Remove trailing whitespace
Show closest candidates. Fixes #7686
Avoid `Real` overflow in `middle`
Update combinatorics.jl
partial support for out-of-tree builds of julia src
Emphasize how `isimmutable` works for types.

Ref: #8760
Make Latex completion in strings
Test approximate over exact equality.
Ignore `@inbounds` when running Pkg tests on Travis
Use a separate face for Julia macro invocations.

Fixes https://github.com/JuliaLang/julia/issues/8721
need to ensure openlibm static library gets installed
Document foldl and foldr implementation
Correct RST warnings
Document mapreduce and friends

Update documentation for reduce, foldl, and foldr.
Add mapreduce documentation for variant with v0.
Add mapfoldl, mapfoldr documentation.
Regenerate help.jl
implement float vs int comparisons in Julia
modify int-float comparisons to fix #9021.
parametric typealias additional explanation

I added some text to clarify a point that stumped me about parametrized types and typealias.
fix ambiguity warning with SharedArray