use zsh from PATH in local
allow "," only in first param for delegation to smp
proper shell default
modules => includes
use zsh by default
Beginnings of working on zsh switch.
Much more work on 1.0.0 API, internal split.
Beginning adjustments for new /shell/ vs /modules/ layout.
modules => includes; removed /shell/
add exit on error flag
Speaking of S&M, this commit was... tedious.
Refactoring sets install into wrapping set install.
fix loading for new layout
punctuation pass; whole tree except dependencies
local and install