Fix wrong example in cheatsheet for filter().
Fix for issue# 10680.

unsigned was moved to std.conv (with a deprecated alias left in
std.traits), but std.bigint was not updated accordingly. This fixes
that.
add version (Windows): too all windows only sources
Merge pull request #1427 from jmdavis/10680

Fix for issue# 10680.
Merge pull request #1424 from dawgfoto/versionWindows

add version (Windows): too all windows only sources
Merge pull request #1422 from quickfur/filter_docs

Fix issue 10660.
Add LetterCase to to!
add missing constructor declarations for -version=StdDdoc
Merge pull request #1432 from dawgfoto/fixup1407

add missing constructor declarations for -version=StdDdoc
Merge pull request #1429 from Kozzi11/toWithLetterCase

Add LetterCase to to!