Merge pull request #5096 from Khez/fix-5083

fixes #5083 by passing full config options to replication

lib/dialects/abstract/connection-manager.js

@@ -114,25 +114,11 @@ ConnectionManager.prototype.initPools = function () {
   }
 
   // Map main connection config
-  config.replication.write = _.defaults(config.replication.write, {
-    host: config.host,
-    port: config.port,
-    username: config.username,
-    password: config.password,
-    database: config.database,
-    pool: config.pool
-  });
+  config.replication.write = _.defaults(config.replication.write, _.omit(config, 'replication'));
 
   // Apply defaults to each read config
-  config.replication.read = _.map(config.replication.read, function(config) {
-    return _.defaults(config, {
-      host: self.config.host,
-      port: self.config.port,
-      username: self.config.username,
-      password: self.config.password,
-      database: self.config.database,
-      pool: self.config.pool
-    });
+  config.replication.read = _.map(config.replication.read, function(readConfig) {
+    return _.defaults(readConfig, _.omit(self.config, 'replication'));
   });
 
   // I'll make my own pool, with blackjack and hookers! (original credit goes to @janzeh)