added the feature of request_no_buffering for http and fastcgi proxy
added English docs for request_non_buffering
added more test cases for request_non_buffering
fixed the code, remove some useless expressions.

Thanks to weiyue
Merge remote-tracking branch 'taobao/master' into request_no_buffering
remove the timer when the no buffer request body read handler returns NGX_OK
Merge branch 'develop' into request_no_buffering
fixed the wrong finalized function for upstream
Merge branch 'develop' into request_no_buffering
Tengined html/index.html
Merge pull request #154 from Red54/e5d5057c6375f214492a93d6fcebd709996ab3e9

Tengined html/index.html
updated the copyright information
Merge pull request #157 from zhuzhaoyuan/copyright-year-2013

updated the copyright information
Tengined html/50x.html
Merge pull request #158 from Red54/patch-1

Tengined html/50x.html
Update tests/nginx-tests/nginx-tests/lib/Test/Nginx.pm

set prefix when start nginx
add sent_cookie variable
Merge pull request #162 from skoo87/sent_cookie

added $sent_cookie_XXX variable
add .gitignore
Merge pull request #163 from skoo87/gitignore

added .gitignore file