when METAEDITOR gets activated set selectedObjectID to META_FOLDER_ID
when METAEDITOR gets activated set selectedObjectID to META_FOLDER_ID


Former-commit-id: af38d0d26c8cd713a4581d1fd3063983589d6e55
webgme/webgme-engine,webgme/webgme-engine,webgme/webgme-engine