kdesc --rewrite from the reflection klammerset; txt caption rules the block's width

Assembled from klammertext-dev e99530408517. The katom rewrite patterns
are rendered from ref/ (a table in dispatch order, patterns through @c),
the procedural listing having left mac/; a plain-text caption's rule is
as long as the table or listing it captions; the editor-support comments
name the tools' new dev/ location.

kpy/Makefile

@@ -4,7 +4,7 @@
 # Like ref/reflect.so and sks/document/document.so it links against
 # libklammertext.so and shares the engine's class layouts, so it is rebuilt
 # whenever they are (mac/Makefile's "all" runs "make -C kpy"; com/Makefile's
-# "redo" and dbg/rebuild.sh clean it -- a clean that misses a directory is a
+# "redo" and dev/rebuild.sh clean it -- a clean that misses a directory is a
 # mixed-object hazard, not a tidiness one).
 #
 # The module's filename carries the interpreter's ABI tag