ExtManager compilable; readded missing method to Core
ExtManager compilable; readded missing method to Core

Originally checked in by DEVSENSE\Jakub on 2013-03-04 17:22:19.797 as Changeset 4068

git-tfs-id: [https://devsense.visualstudio.com/DefaultCollection]$/Phalanger/Main;C6946

diddledan/Phalanger,diddledan/Phalanger,DEVSENSE/Phalanger,DEVSENSE/Phalanger,kendallb/Phalanger,kendallb/Phalanger,kendallb/Phalanger,DEVSENSE/Phalanger,diddledan/Phalanger,diddledan/Phalanger,DEVSENSE/Phalanger,kendallb/Phalanger,DEVSENSE/Phalanger,DEVSENSE/Phalanger,kendallb/Phalanger,kendallb/Phalanger,diddledan/Phalanger