support CATALOG header line...

[git-p4: depot-paths = "//depot/": change = 1578]

cdrtoc.py

@@ -58,6 +58,8 @@ def parsetoc(toc):
 		if state == 0:
 			if i in types:
 				r['type'] = i
+			elif key == 'CATALOG':
+				r['catalog'] = decodestr(i, i.index('"') + 1)
 			elif key == 'CD_TEXT':
 				state = 1
 				if track == 0: