~dricottone/my-utils

ref: fbf20d48af8ae6a18e44aa89e58e47c09fe06147 my-utils/containers/swarm-test -rwxr-xr-x 460 bytes
Refactored code into multiple 'packages'. One day these may be
independently installable. For now it's just an organization method.

Rewrote main README and added per-package READMEs.

Also: bug fix on whiched and whichvi. They formerly propogated an error
if $EDITOR or $VISUAL were set to a non-existant executable. Also
improved the inline documentation.