Update README.windows.md

added supporting information in cases when packages are failing to build in Windows
Windows: Don't test ispath on deleted file or dir

These are failing with "stat: operation not permitted (EPERM)". There may still be
file handles open so the unlinked file and removed directory cannot be stat-ed.
linrange for constructing ranges by endpoints and length
linrange length check, add tests
bugfix in redisplay: applicable(redisplay, x) always returns true because the default redisplay simply calls through to display
linrange type consistency
Update to enable compilation with latest LLVM trunk.
add a custom inliner for typeassert, to remove it earlier
Merge branch 'master' of https://github.com/JuliaLang/julia
Clean up examples/. Add test/examples.jl to track breakage for examples. Fixes #7332.
ifndef windows for init.c
Merge pull request #7401 from JuliaLang/jq/suppresswarning

init.c tweak
Remove trailing blank to force Travis to rebuild/test.
add some declarations that help the new mapreduce() implementation
Merge branch 'master' of https://github.com/JuliaLang/julia
Merge pull request #7399 from ArchRobison/adr/llvm35june24

Update to enable compilation with latest LLVM trunk.
fix #7390
much faster iteration over ObjectIdDict
Merge branch 'master' of https://github.com/JuliaLang/julia
update helpdb.jl