[#V1] Improve hmset method debugging and flexibility

* Allows optional hash parameter for hmset method
* Adds tracing for HMSET operations in debug mode
( Provides more flexible way to set multiple hash fields

Author: delano

lib/familia/horreum/commands.rb

@@ -107,8 +107,10 @@ def hset(field, value)
         redis.hset rediskey, field, value
       end
 
-      def hmset
-        redis.hmset rediskey(suffix), self.to_h
+      def hmset(hsh={})
+        hsh ||= self.to_h
+        Familia.trace :HMSET, redis, hsh, caller(1..1) if Familia.debug?
+        redis.hmset rediskey(suffix), hsh
       end
 
       def hkeys