Fixed logging from jest3s library.

I fixed the same issue already 6months ago,
but some of last changes in build.sh deleted copy
of java/src/resource into h2o.jar.

Hence, jest3s library was not properly configured
and outputed all debug content into logs.

build.sh

@@ -126,6 +126,11 @@ function build_classes() {
         $SRC/jsr166y/*java \
         $TESTSRC/*/*java \
         $TESTSRC/*/*/*java
+
+    # Copy Java resources
+    # If you delete this line you take responsibility for logging and you have to make
+    # sure that jests3 library will not output its logs into our log files !!!
+    cp -r ${RESOURCES}/* "${CLASSES}"
 }
 
 function build_initializer() {

src/main/java/water/util/Log.java

@@ -332,17 +332,17 @@ private static org.apache.log4j.Logger createLog4jLogger(String logDirParent) {
         p.setProperty("log4j.appender.R.MaxBackupIndex", "5");
         p.setProperty("log4j.appender.R.layout", "org.apache.log4j.PatternLayout");
 
-	// Turn down the logging for some class hierarchies.
+        // Turn down the logging for some class hierarchies.
         p.setProperty("log4j.logger.org.apache.http", "WARN");
         p.setProperty("log4j.logger.com.amazonaws", "WARN");
         p.setProperty("log4j.logger.org.apache.hadoop", "WARN");
+        p.setProperty("log4j.logger.org.jets3t.service", "WARN");
 
         // See the following document for information about the pattern layout.
         // http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html
-	//
-	// Uncomment this line to find the source of unwanted messages.
+        //
+        //  Uncomment this line to find the source of unwanted messages.
         //     p.setProperty("log4j.appender.R.layout.ConversionPattern", "%p %C %m%n");
-	//
         p.setProperty("log4j.appender.R.layout.ConversionPattern", "%m%n");
 
         PropertyConfigurator.configure(p);