fix links, fix hot reload

package.cm

@@ -41,6 +41,13 @@ package.find_alias = function(name, locator)
   return null
 }
 
+package.alias_to_package = function(name, alias)
+{
+  var config = package.load_config(name)
+  if (!config.dependencies) return null
+  return config.dependencies[alias]
+}
+
 // alias is optional
 package.add_dependency = function(name, locator, alias = locator)
 {