fixed: websocket crash on android 5(all before 6 platform)

Author: jwfing

realtime/pom.xml

@@ -70,7 +70,7 @@
     <dependency>
         <groupId>org.java-websocket</groupId>
         <artifactId>Java-WebSocket</artifactId>
-        <version>1.5.0</version>
+        <version>1.4.1</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>