Fix: pagenation error in search result
Add: search problem by author name
Add: page keywords and description for SEO
Fix: it's 2011...
Fix: sql injection bug in problem code
Fix: check if requested image is really in image directory
Fix: compile error on new gcc version
Fix: incorrect handling in select syscall
Fix: compile issue in new gcc
Add judge reply "Non-zero Exit Code"
Merge pull request #2 from watashi/patch-1

Add judge reply "Non-zero Exit Code"
Slightly enlarge the resource limits of compiler
Merge pull request #3 from watashi/patch-2

Slightly enlarge the resource limits of compiler
Merge branch 'master' of github.com:licheng/zoj
It's 2014 now.

This file on acm.zju.edu.cn is already updated.
Merge pull request #4 from ZhouYuChen/patch-1

It's 2014 now.
Fix build error (GCC 4.9)