Fix minor issues with logging levels

Author: kklisura

cdtp-examples/src/main/java/com/github/kklisura/cdpt/examples/LogRequestsExample.java

@@ -54,5 +54,7 @@ public static void main(String[] args) throws InterruptedException {
 
     // Navigate to github.com.
     page.navigate("http://github.com");
+
+    devToolsService.waitUntilClosed();
   }
 }

cdtp-examples/src/resources/logback.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+  <!-- Send debug messages to System.out -->
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{5} - %msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <!-- By default, the level of the root level is set to DEBUG -->
+  <root level="INFO">
+    <appender-ref ref="STDOUT" />
+  </root>
+</configuration>

cdtp-java-client/src/main/java/com/github/kklisura/cdtp/services/impl/WebSocketServiceImpl.java

@@ -79,15 +79,15 @@ public static WebSocketService create(URI uri) throws WebSocketServiceException
 
   @Override
   public void connect(URI uri) throws WebSocketServiceException {
-    LOGGER.info("Connecting to ws server {}", uri);
+    LOGGER.debug("Connecting to ws server {}", uri);
 
     try {
       session =
           WEB_SOCKET_CONTAINER.connectToServer(
               new Endpoint() {
                 @Override
                 public void onOpen(Session session, EndpointConfig config) {
-                  LOGGER.debug("Connected to ws server {}", uri);
+                  LOGGER.info("Connected to ws server {}", uri);
                 }
 
                 // TODO(kklisura): Add close handler.
@@ -102,7 +102,7 @@ public void onOpen(Session session, EndpointConfig config) {
   @Override
   public void send(String message) throws WebSocketServiceException {
     try {
-      LOGGER.info("Sending message {} on {}", message, session.getRequestURI());
+      LOGGER.debug("Sending message {} on {}", message, session.getRequestURI());
       session.getBasicRemote().sendText(message);
     } catch (Exception e) {
       LOGGER.error("Failed sending data to ws server {}...", session.getRequestURI(), e);