nginx security advisory (CVE-2013-4547)
patched http://nginx.org/download/patch.2013.space.txt
Merge pull request #342 from yzprofile/master

nginx security advisory (CVE-2013-4547)
added the variable  to the built-in variables
added  variable test case
1 Extract the api of nginx for compiling dso module.

2 Remove the dependence of nginx source, when compile the dso module.
Merge pull request #350 from flygoast/master

added the variable 'time_http' to the built-in variables
Merge pull request #351 from monadbobo/dso_fix1205

Enhanced the DSO module
support recording request time in usec for subrequest
Merge pull request #353 from jinglong/ali

support recording request time in usec for subrequest
add expires_by_types wildcard type support
e.g. expires_by_types 10y image/*;
Merge pull request #356 from zhcn381/upstream

add expires_by_types wildcard type support
add function: ngx_encode_base64url()
Added variable full_request
Added escape_uri_ variable
Merge pull request #361 from yzprofile/dev

Added variable full_request & Added escape_uri_ variable
Merge pull request #359 from lilbedwin/base64url

add function: ngx_encode_base64url()
do not trim html comment of ssi/esi
Merge pull request #363 from taoyuanyuan/master

trim不删除ssi和esi的注释
nginx-tfs new feature and bugfixs

1. add reporting access stat to rcs while keepalive and multiple rcs support
2. raw tfs add HEAD protocol for check file exist
3. fix update file fail will rollback lead to unlink file bug
4. fix memory leak bug
5. fix stat larger than 2GB file size is negative bug
6. fix may infinitely looping while saving dedup file bug
7. fix read incomplete large file core bug
8. modify choose unlink cluster related stratery and bugfix
build rbtree to store upstreams so as to improve performance when searching for upstreams
fix a format issue