BigInt: add convert(Float64, ::BigInt) with TODO to fix rounding.

Unfortunately, the GMP function that does this conversion truncates
inexact values, rather than rounding to the nearest double.
Fix internal SharedArray function range_1dim

Fixes the case when length of the array is smaller than
number of pids.
Small formatting fixes in SharedArray

(mostly trailing whitespace)
Add return statement to map! on SharedArrays
Add distributed copy! for SharedArrays
Fix #6362 (deepcopy broken for SharedArrays)
fix #6366 (REPL crash in reverse-i-search)
LineEdit: rename respose_buffer -> response_buffer
bump libuv (minor)
Restore movement by word to word-boundaries

Add edit_werase to delete to previous whitespace, revert all other movement and deletion by word actions to move to word-boundaries
Merge pull request #6368 from mbauman/word-delimiters

Fix #6347: Make movement by word jump to word-boundaries
repl: fix 'ERROR: key not found: nothing' reverse-i-search bug

Part of #6325.
Bump openlibm openspecfun
Revert "Bump openlibm openspecfun"

This reverts commit 4698a9780271bda75fd96359473230ae301b7669.
combine colon and frange, and small improvement to StepRange
Merge branch 'master' of github.com:JuliaLang/julia