Add a blink comparator and pixel difference to image diffs

Tom

2014-11-17 b6f47539cd1a1dafe05ffd6fdc40bce4547c479d

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

@@ -18,8 +18,8 @@
import java.io.File;

import java.io.IOException;



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.HttpServletRequest;