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.