updated the readme file
Merge pull request #339 from zhuzhaoyuan/readme-1.4.3

updated the readme file
bugfix: don't record request time in subrequest
Merge pull request #340 from jinglong/ali

bugfix: don't record request time in subrequest
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