This preserves the pipe/cmd-substitution/etc to allow post-processing
of the `date` output.
Interpreter: Reset `interpreted` contextual metadata when handling
result to allow recursion for continued command processing.
"Applet" is a much better name for the external command-line
scripts and programs that can be loaded as PBot commands. They
will no longer be confused with Perl modules.
https://en.wikipedia.org/wiki/Applet
