Add color scales; Fix mslice.parseFloat bug

See RELEASE_NOTES.md for more details.

Colorizing (& not) rendering clean-ups

See release notes & commit log for more details.

get mfile/mslice working under Windows

See RELEASE_NOTES.md for details. Two breaking changes are

• findPathPattern convenience function moved from cligen/mfile to cligen/osUt (invisible if you import both...)
• Very low-level (but still exported/exposed) mfile.mopen(fd: cint; st: Stat, ...) changed signature to mopen(fd, fh: cint; fi: FileInfo, ...).

Bug fix release

Fix #220

Fix version screw up..

Oops - did not update .nimble as well as pushing the tag.

OSX & Nim portability fixes

More fixes for portability across Nim versions (unsafeAddr) & platforms.

Bug fix release

Do not force space in uncertain numbers via the default templates (since pm already covers that..) and a couple of platform-Nim portability bug fixes.

Bug fix, warning clean-up, strip refactor

Fix a bug @SolitudeSF found, make safe against several classes of warnings, refactor mslice.strip to have leading, trailing or both, and add a couple missing POSIX/Linux calls.

Zsh subcommand complete generator

And several & varied trackings of nim-devel. See RELEASE_NOTES.md & changelog for details.

Fixes for newer devel & nimPreviewSlimSystem

Adapt to the getImpl nnkConstDef change a few weeks ago to get test/PassValues*.nim working again.

Also, do a lot of little compatibility imports for the upcoming -d:nimPreviewSlimSystem mode. (No idea how this impacts the analysis of #207, but I mention it since there may be overlap of interest.)