Removed the variable $sec in the http log module
added the variable $unix_time to the built-in varibles

$unix_time stores the current unix time by second
added the test directive to Makefile
Merge pull request #106 from yaoweibin/integer_timestamp

added the $unix_timestamp variable which represents the unix time now
added the nginx-tests perl library path to prove command
added the missing requirment for the test cases for concat and slice
removed the copy mime.types action in the test cases
Merge pull request #108 from zhuzhaoyuan/fix_auto_test

added the missing requirment for the test cases for concat and slice
Merge remote-tracking branch 'taobao/master' into make_test
added a verbose option the prove command when make test
Merge pull request #107 from yaoweibin/make_test

added the 'test' target to Makefile
updated dso-nginx-tests test scripts
Synced all the nginx-tests cases with http://mdounin.ru/hg/nginx-tests/
Merge pull request #109 from yaoweibin/test_updated

updated test cases
updated the comments in http upstream check module
updated the test scripts for http upstream check module
added proxy_ssl_session_reuse off for https proxy
add include <sys/sysinfo.h>
Merge pull request #113 from lifeibo/sysinfo

fixed a compilation bug in Windows (cygwin)
added the attribute 'id' for upstream server

This attribute can be specified by user. It may be useful for
session sticky load balance or other hash based methods.