change flags for one-way connections from hidden to unconnected so we can still use hidden for - well hiding connections

boot.php

@@ -290,6 +290,7 @@ define ( 'ABOOK_FLAG_IGNORED'    , 0x0002);
 define ( 'ABOOK_FLAG_HIDDEN'     , 0x0004);
 define ( 'ABOOK_FLAG_ARCHIVED'   , 0x0008);
 define ( 'ABOOK_FLAG_PENDING'    , 0x0010);
+define ( 'ABOOK_FLAG_UNCONNECTED', 0x0020);
 define ( 'ABOOK_FLAG_SELF'       , 0x0080);