set correct default maxConnectionLifetimeInMs

com.ning.http.client.AsyncHttpClientConfigBean doesn't use
com.ning.http.client.AsyncHttpClientConfig.Builder thus doesn't pick
many default values, unluckily maxConnectionLifeTimeInMs is one of them,
it's wrongly initialized to zero instead of -1, this bug will make
org.asynchttpclient.providers.netty.channel.DefaultChannelPool.offer() close
the cached http connection too early because "createTime + maxConnectionLifeTimeInMs < millisTime()".

    public boolean offer(String uri, Channel channel) {
        if (closed.get())
            return false;

        if (!sslConnectionPoolEnabled && uri.startsWith("https")) {
            return false;
        }

        Long createTime = channel2CreationDate.get(channel);
        if (createTime == null) {
            channel2CreationDate.putIfAbsent(channel, millisTime());

===>    } else if (maxConnectionLifeTimeInMs != -1 && (createTime + maxConnectionLifeTimeInMs) < millisTime()) {
            log.debug("Channel {} expired", channel);
            return false;
        }

Author: Dieken

api/src/main/java/org/asynchttpclient/AsyncHttpClientConfigBean.java

@@ -51,6 +51,7 @@ void configureDefaults() {
         idleConnectionInPoolTimeoutInMs = Integer.getInteger(ASYNC_CLIENT + "defaultIdleConnectionInPoolTimeoutInMS", 60 * 1000);
         idleConnectionTimeoutInMs = Integer.getInteger(ASYNC_CLIENT + "defaultIdleConnectionTimeoutInMS", 60 * 1000);
         requestTimeoutInMs = Integer.getInteger(ASYNC_CLIENT + "defaultRequestTimeoutInMS", 60 * 1000);
+        maxConnectionLifeTimeInMs = Integer.getInteger(ASYNC_CLIENT + "defaultMaxConnectionLifeTimeInMs", -1);
         redirectEnabled = Boolean.getBoolean(ASYNC_CLIENT + "defaultRedirectsEnabled");
         maxDefaultRedirects = Integer.getInteger(ASYNC_CLIENT + "defaultMaxRedirects", 5);
         compressionEnabled = Boolean.getBoolean(ASYNC_CLIENT + "compressionEnabled");
@@ -99,6 +100,11 @@ public AsyncHttpClientConfigBean setConnectionTimeOutInMs(int connectionTimeOutI
         return this;
     }
 
+    public AsyncHttpClientConfigBean setMaxConnectionLifeTimeInMs(int maxConnectionLifeTimeInMs) {
+        this.maxConnectionLifeTimeInMs = maxConnectionLifeTimeInMs;
+        return this;
+    }
+
     public AsyncHttpClientConfigBean setIdleConnectionInPoolTimeoutInMs(int idleConnectionInPoolTimeoutInMs) {
         this.idleConnectionInPoolTimeoutInMs = idleConnectionInPoolTimeoutInMs;
         return this;