refactored and renamed help functions:
glossary now shows all functions with 'about' metadata, like:
$ glossary
or, only functions by group, with:
$ glossary composure
reference () now shows apidoc help for specific functions, e.g.:
$ reference down4me
automatically version shell functions with git:
* treat all shell functions as micro shell scripts
* store functions as .sh files in a ~/.composure repo
* revise () edits functions from last commit state
* re-source functions from ~/.composure at any time, in any shell
numerous fixes and refactorings
Erich Smith