general: use explicit float consts rather than calced ones

manual: remove extra tags from "manual.txt" and clean up table
  captions

docs/Makefile

@@ -167,11 +167,14 @@ $(OUT_TXT) : $(SOURCE) $(SOURCE_MAN_PAGE) $(INCLUDES_TXT) Makefile
 			-V $(MAIN_FONT) -V $(MONO_FONT) -V $(CJK_FONT) \
 			$(TXT_OPTS) \
 			-o $(OUT_TXT)
-	# Indent Man Page sections in TOC, remove trailing spaces and echoed image tags
+	# Indent Man Page sections in TOC, remove trailing spaces, echoed image tags, tbl: hashes
+	# & clean up Table captions
 	sed -i \
 		-e 's/^\(-   [A-Z][A-Z ]*\)$$/    \1/' \
 		-e 's/  *$$//' \
 		-e '/^\[.*\]$$/{N;N;s/\[\(.*\)\]\n\n\1/[\1]/;p;d}' \
+		-e 's/ *{#tbl:[^}]*}//' \
+		-e 's/: Table\xC2\xA0: \([^:]*\):/Table : \1/' \
 		$(OUT_TXT)
 	# Wrap
 	sed -i '/.\{81\}/{s/.\{80\}/&\n/}' $(OUT_TXT)