lukesampson/concfg: Update to version 0.2018.10.22.
lukesampson/psutils: Update to version 0.2018.08.04. (gitignore, ln, runat, say, shasum, sudo, time, touch, vimtutor)
For convenience, I add a new bucket called 'psutils' to install all these scripts, since I didn't find such one.
* makes changes to almost all main repo files to be in accordance with .editorconfig
* some files in "test\fixtures\..." were left alone to avoid breaking tests
* NOTE: whitespace changes *only* (`git diff -b` shows no changes)
