Remove defunct link.
add DATAROOTDIR to build_h.jl, use it in Base.runtests()
Use a larger stack for PCRE's JIT. Fixes #8278.
move default setting of prefix to Make.inc,

change SYSCONFDIR and DATAROOTDIR to be relative paths
fix eigfact doc
splice!: allow replacement argument to be anything enumerable.

This is a good example of scalars being iterable being a good thing.

cc: @carlobaldassi – splice! for BitArrays should also be generalized
but I was finding it tricky to figure out the best way to do so.
Merge pull request #8391 from rfourquet/docs-linalg

fix eigfact doc
Merge pull request #8379 from JuliaLang/tk/datarootdir

add DATAROOTDIR to build_h.jl, use it in Base.runtests()
Fix Triangular methods for the case where the diagonal is unity. Add some tests and split the triangular tests into their own test file.
Remove redundant arpack
readdlm tests do not depend on perf files anymore
Merge pull request #8398 from tanmaykm/readcsv

readdlm tests do not depend on perf files anymore
additional zeros and ones usages added to manual
added undocumented ones and zeros usage to stdlib
Merge branch 'davidssmith-manual'
Merge branch 'master' of github.com:JuliaLang/julia
Change backslash to forwardslash: Unix file path
Merge pull request #8371 from danluu/fb_link

Remove defunct link
Merge pull request #8385 from JuliaLang/anj/triangular

Fix Triangular methods for the case where the diagonal is unity.
Change promotion rule for rational factorizations
Merge pull request #8388 from JuliaLang/dcj/pcrejitstack

Use a larger stack for PCRE's JIT. Fixes #8278.