allow apihost port to be configurable (#170)

diff --git a/provider/lib/utils.js b/provider/lib/utils.js
index 57550ca..fb5c3dc 100644
--- a/provider/lib/utils.js
+++ b/provider/lib/utils.js
@@ -14,7 +14,7 @@
     this.redisClient = redisClient;
     this.redisHash = this.db.config.db + '_' + this.worker;
     this.redisKey = constants.REDIS_KEY;
-    this.uriHost ='https://' + this.routerHost + ':443';
+    this.uriHost ='https://' + this.routerHost;
     this.monitorStatus = {};
 
     var retryAttempts = constants.RETRY_ATTEMPTS;