Faster linear indexing for SubArrays, dims 1-5
Add textmime macro

There is quite a number of functions that need to be defined for a
text mime-type to flawlessly interact with the rest of the system.
If the mime type is not included in Base, this is quite tedious, so
add a macro that defines all the necessary functions appropriately.
Avoid overhead of calling size in getindex/setindex for SubArrays
Change default qr subroutine to one that allows m<n. Update documentation for fat QR. Return permutation vector instead of matrix in pivoted QR.
Add Hash Function For Set
Add realpath for Windows

Fixes #4446
add ifelse function and underlying intrinsic select_value. closes #4451
Add 2nd try if the 1st buffer is too small.
Adds eig, eigvals and eigvecs for Bidiagonal

Addresses #3688.
Pkg.update: better error message wording.
add conversions from Vector{Char} to String. closes #4499
Revert "Adds eig, eigvals and eigvecs for Bidiagonal"

This reverts commit 9cf7aeecc614291838ad2f68a19c5b9ce7ad6a4b.

(build broken)
Merge branch 'master' of github.com:JuliaLang/julia
parse: refactor to make `greedy` and `raise` keyword arguments.
parse(str): the greedy flag doesn't really make much sense.
Merge pull request #4577 from JuliaLang/sk/parse

parse: refactor to make `greedy` and `raise` keyword arguments.
fix #4518
Merge branch 'master' of github.com:JuliaLang/julia
Add Test For Set Hashing
Add allocation free matrix multiplaction and solving