Documentation tweaks (`map!()` and `names()`)
remove space from install path
Fix JuliaLang/julia#6665

Provides airyx in addition to bessel[jyikh]x
Tweaks to StepRange: Take 2
Updates following discussion in JuliaLang/julia#6665

Rather than introducing bessel[hijky]x functions, introduce optional
positional argument to bessel[hijky] and airy for scaled version.
add `full` method for Cholesky
Force OpenBLAS to have a more sane GEMM_MULTITHREAD_THRESHOLD
add unicode superscripts and subscripts to latex substitutions
replace \\Elzxh with \\hbar to match latex usage
moved super/subscripts and hbar to manually added section
get rid of curly braces in latex super/subscripts and add \del mapping
Added StackOverflow link on README.md

I think StackOverflow is a very good platform, and helps expose Julia to a broader public. Putting a link here on the README should direct users to post more questions there.

Now, Julia is not very present at StackOverflow, and users might have the wrong impression that nobody uses the language or care about it. After all, the julia-users list is full of questions and nice answers.
support many more Unicode infix operators
Added "external resources" section, with links
Merge branch 'master' into sub_super
Deprecate all methods of bitmix, not just Uint

bitmix had been defined with methods for all of `Int32, Uint32, Int64, Uint64`, while hash only supports `Uint` in its second argument.  This adds the necessary deprecations for all those methods. Calling the non-machine-size method isn't optimal, but it returns the type that bitmix did.
Add docs for short forms of reduce and fold
Merge pull request #6944 from mbauman/bitmix-deprecations

Deprecate all methods of bitmix, not just Uint
eliminate a couple more confusables; multiset multiplication U+228D should have * precedence despite looking like a union; change NEWS table to only explicitly list operators that are predefined
deprecate readsfrom/writesto in favor of simply using open on AbstractCmds, and support: open(cmd, mode) do io ... end