Use author date to be consistent with other tools (fixes #919)

James Moger

2015-09-18 a592329a82d0a85d33abcc63f08df20b79e8e4f7

 src/main/java/com/gitblit/servlet/DownloadZipServlet.java

@@ -20,8 +20,8 @@
import java.text.ParseException;

import java.util.Date;



import javax.inject.Inject;

import javax.inject.Singleton;

import com.google.inject.Inject;

import com.google.inject.Singleton;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletResponse;