新开分支整理代码：

1.帮助文档修改功能
2.帮助文档与上一版对比功能
3.单点问题解决
4.markdown帮助文档

Conflicts:
	src/main/resources/messages/message_en.properties
	src/main/resources/messages/message_ru.properties
	src/main/resources/messages/message_zh_CN.properties

src/main/java/com/nis/util/redis/SaveHelpInfoThread.java

@@ -0,0 +1,38 @@
+package com.nis.util.redis;
+
+
+import org.apache.log4j.Logger;
+
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisPool;
+
+public class SaveHelpInfoThread extends Thread {
+	private Logger logger=Logger.getLogger(SaveHelpInfoThread.class);
+	private JedisPool jedisPool;
+	private Jedis jedis;
+	private String key;
+	private String value;
+	private int expire;
+	public SaveHelpInfoThread(JedisPool jedisPool,String key,String value,int expire){
+		this.jedisPool=jedisPool;
+		this.key=key;
+		this.value=value;
+		this.expire=expire;
+		jedis=jedisPool.getResource();
+		
+	}
+	@Override
+	public void run() {
+		try {
+			jedis.set(key, value);
+			if(expire!=-1){
+				jedis.expire(key, expire);
+			}
+			logger.debug("cache help[key --> "+key+"]");
+		} catch (Exception e) {
+			logger.error("save redis error",e);
+		}finally{
+			jedis.close();
+		}
+	}
+}