Added id, moved to 0.4.0-dev

Author: RichardLitt

apiary.apib

@@ -2064,7 +2064,8 @@ included in the output of this command.
             - `Check`: "error" (string)
             - `CheckDate`: "0001-01-01T00:00:00Z" (string)
             - `CheckPeriod`: "172800000000000" (string)
-            - `Current`: "0.3.11-dev" (string)
+            - `Current`: "0.4.0-dev" (string)
+        + `id` (Multihash)
 
 # Group daemon