Improved taxonomy by supporting tags, multiple terms allowed, and required kind of vocabulary for specific content type.

Updated node web form, to support taxonomy editing if allowed (specific support for CMS_VOCABULARY.is_tags: BOOLEAN).
Added notion of required or optional module dependencies.

modules/taxonomy/cms_term.e

@@ -11,14 +11,25 @@ class
 inherit
 	COMPARABLE
 
+	DEBUG_OUTPUT
+		undefine
+			is_equal
+		end
+
 create
-	make
+	make,
+	make_with_id
 
 feature {NONE} -- Initialization
 
-	make (a_id: INTEGER_64; a_text: READABLE_STRING_GENERAL)
+	make_with_id (a_id: INTEGER_64; a_text: READABLE_STRING_GENERAL)
 		do
 			id := a_id
+			make (a_text)
+		end
+
+	make (a_text: READABLE_STRING_GENERAL)
+		do
 			set_text (a_text)
 		end
 
@@ -44,6 +55,19 @@ feature -- Status report
 			Result := id > 0
 		end
 
+	debug_output: STRING_32
+			-- String that should be displayed in debugger to represent `Current'.
+		do
+			create Result.make_empty
+			Result.append_character ('#')
+			Result.append (id.out)
+			Result.append_character (' ')
+			Result.append (text)
+			Result.append_character (' ')
+			Result.append ("weight=")
+			Result.append_integer (weight)
+		end
+
 feature -- Comparison
 
 	is_less alias "<" (other: like Current): BOOLEAN