1、【新增】添加IM

2、【新增】添加项目页面
2、【新增/修改】将日志写入到ArangoDb（原来MongoDb）

src/com/lxyer/bbs/base/BaseServlet.java

@@ -86,9 +86,7 @@ public class BaseServlet extends HttpServlet {
 
             VisLog visLog = new VisLog();
             visLog.setIp(request.getRemoteAddr());
-            visLog.setUri(request.getRequestURI());
             visLog.setHeaders(headers);
-            visLog.setUserid(userid);
             visLog.setPara(para);
             visLog.setTime(System.currentTimeMillis());
             visLog.setFtime(String.format("%1$tY%1$tm%1$td%1$tH%1$tM%1$tS", visLog.getTime()));