Merge pull request #648 from tronprotocol/feature/change_interval

change block interval from 5000 to 1000

Author: wubin12

src/main/java/org/tron/core/config/Parameter.java

@@ -13,7 +13,7 @@ interface ChainConstant {
     int PRIVATE_KEY_LENGTH = 64;
     int MAX_ACTIVE_WITNESS_NUM = 15;
     int TRXS_SIZE = 2_000_000; // < 2MiB
-    int BLOCK_PRODUCED_INTERVAL = 5000; //ms,produce block period, must be divisible by 60. millisecond
+    int BLOCK_PRODUCED_INTERVAL = 1000; //ms,produce block period, must be divisible by 60. millisecond
     long CLOCK_MAX_DELAY = 3600 * 1000; //ms
     long BATCH_FETCH_RESPONSE_SIZE = 1000; //for each inventory message from peer, the max count of fetch inv message
   }