Removed three nonstandard clauses in PS LOOP (:INDEX, :FIRST-TIME, and :LAST-TIME) which date back to the experimental origins of this code and which, as far as I know, are unused.
Removed three nonstandard clauses in PS LOOP (:INDEX, :FIRST-TIME, and :LAST-TIME) which date back to the experimental origins of this code and which, as far as I know, are unused.

JDReutt/parenscript,manuel/parenscript,3b/parenscript,VincentToups/parenscript,vsedach/Parenscript,fredericksilva/Parenscript