switch to length fn

add.ce

@@ -14,7 +14,7 @@ var fd = use('fd')
 var locator = null
 var alias = null
 
-for (var i = 0; i < args.length; i++) {
+for (var i = 0; i < length(args); i++) {
   if (args[i] == '--help' || args[i] == '-h') {
     log.console("Usage: cell add <locator> [alias]")
     log.console("")
@@ -51,7 +51,7 @@ if (locator == '.' || starts_with(locator, './') || starts_with(locator, '../')
 if (!alias) {
   // Use the last component of the locator as alias
   var parts = array(locator, '/')
-  alias = parts[parts.length - 1]
+  alias = parts[length(parts) - 1]
   // Remove any version suffix
   if (search(alias, '@') != null) {
     alias = array(alias, '@')[0]