Update leveled.schema

To set log level

priv/leveled.schema

@@ -41,6 +41,7 @@
   {datatype, atom}
 ]}.
 
+
 %% @doc Compression point
 %% The point at which compression is applied to the Journal (the Ledger is 
 %% always compressed).  Use on_receipt or on_compact.  on_compact is suitable
@@ -51,6 +52,15 @@
   {datatype, atom}
 ]}.
 
+%% @doc Log level
+%% Can be debug, info, warn, error or critical
+%% Set the minimum log level to be used within leveled.  Leveled will log many
+%% lines to allow for stats to be etracted by those using log indexers such as
+%% Splunk
+{mapping, "leveled.log_level", "leveled.log_level", [
+  {default, info},
+  {datatype, atom}
+]}.
 
 %% @doc The approximate size (in bytes) when a Journal file should be rolled.
 %% Normally keep this as around the size of o(100K) objects.  Default is 500MB