apache log4j 2.0

Apache Log4j 2.0 发布第 4 个 Beta 版本,包括的新特性有: o Added Log4j 2 to SLF4J adapter. o LOG4J2-131: Add SMTPAppender. Thanks to Scott Severtson. o Added hostName and contextName to property map. o Add MessageFormatMessage and FormattedMessage. o LOG4J2-134: Use %red, %white, %blue, and so on in the con