Add significand to BigFloat, fix #7207
Add tests for significand(::BigFloat)
fix #7203 and #7218

for Windows users who have git configured with \r\n line endings,
or modify the source in an editor that always uses \r\n
restore broadcasting array±scalar operations (removed in #5810)
updates Pkg.publish docs because now it opens a pull request
Fix calling of makensis on win
Fix mmap with offset on Windows

query allocation granularity (64k on Windows, larger than page size which is 4k),
ensure offset to MapViewOfFile is a multiple of the granularity

add a test for mmap with offset
fix #7248: throw boundserror for invalid indices in ind2chr/chr2ind
add checkbounds(s::String, I)
REPL: Moving left and right was skipping newlines

Issue #7210 fixed movement across combining characters, such that moving left
and right by one character would skip all zero-width characters, but this also
inadvertently includes newlines. This made it impossible to navigate to the end
of a line that ended with a newline with the left and right arrows alone. And movement across multiple newlines would skip across them all at once.

This fixes that and adds simple regression tests.
Merge pull request #7211 from andrioni/add_significand

Add significand to BigFloat, fix #7207
Merge pull request #7220 from tkelman/patch-4

fix #7203 and #7218
Merge pull request #7253 from mbauman/char-move-skips-newlines

REPL: Moving left and right was skipping newlines
Merge pull request #7249 from stevengj/ind2chr_bounds

fix #7248: throw boundserror for invalid indices in ind2chr/chr2ind
isvalid() chr2ind() ind2chr() for SubString of DirectIndexString
Merge pull request #7255 from davidanthoff/fixopenblasbuilderroronwin

Add missing -lgfortran flag to a openblas makefile
fix szfile and szarray values

replace 0xffffffff with typemax(Uint32)
add a test with a larger offset than 64k
use div(a, b) instead of ifloor(a/b)
make 'julia --help' output more uniform in style. Also update manpage, and getting started guide for latest flags.
Merge pull request #7260 from sjkelly/man_page_updates

make 'julia --help' output more uniform in style.
Tweak description of assignment scoping

A local variable can be introduced into an enclosing scope without the `local` keyword. The use of the term "explicit" here makes one think of the `local` keyword.