Properly set sslSessionTimeout, close AsyncHttpClient#945

Author: slandelle

src/main/java/com/ning/http/client/AsyncHttpClientConfig.java

@@ -150,7 +150,7 @@ private AsyncHttpClientConfig(int connectTimeout,//
         this.enabledProtocols = enabledProtocols;
         this.enabledCipherSuites = enabledCipherSuites;
         this.sslSessionCacheSize = sslSessionCacheSize;
-        this.sslSessionTimeout = sslSessionCacheSize;
+        this.sslSessionTimeout = sslSessionTimeout;
         this.providerConfig = providerConfig;
     }