1, add error_page off;
1, change error_page off to error_page default;
2, add test cases for error_page default.
Merge pull request #6 from jinglong/master

added error_page default
bugfix: if you have not added the processes block in your conf file, you will get a coredump when you call ngx_proc_get_conf or ngx_proc_get_main_conf.
delete the blank
Merge pull request #7 from yzprofile/dev

bugfix: if there is no processes block defined
1 fix bugs of the limit_req module(please read this issue https://github.com/taobao/tengine/pull/1).

2 add test case for limit_req module.

3 refactor some code and fixed code style.
Merge pull request #9 from monadbobo/topic2

fix bugs of the limit_req module 
fixed compile warning.
Merge pull request #10 from monadbobo/taobao-topic

fixed an compile warning with limit_req module.
merged changes between nginx-1.0.15 and nginx-1.2.0
fix the incompatible code in upstream check module with nginx-1.2.0
Merge pull request #2 from yaoweibin/check_shm_bug

Check shm bug
add docs of backtrace and limit_req module.
Merge pull request #13 from monadbobo/taobao-topic

add docs of backtrace and limit_req module.
Merge pull request #12 from zhuzhaoyuan/nginx-1.2-merge

merged changes between nginx-1.0.15 and nginx-1.2.0
bump version
Merge pull request #14 from zhuzhaoyuan/bversion

bump version 1.4.0
add document for ngx_http_user_agent_module
modify the document