bumped version
fix client timed out bug.
should not return 500 when client timed out.
Merge pull request #176 from zhuzhaoyuan/bump-version-1.4.4

bumped version
merge nginx changes between 1.2.5 and 1.2.6
change cpu affinity to 'off' as default
update cpu affinity log, so that nginx will write down 'cpuset_setaffinity' rather than 'sched_setaffinity' in freebsd
bugfix

1. 当读文件请求返回status_msg时（如ds正在升级不能提供服务时）仍使用read_resp_msg去解析会导致解析错误，打印错误的内存数据到log中，并可能导致超时
2. 修改默认的从后端接收buf大小为2M，确保在下载文件返回应答的头时能够获得file_info
3. 在下载原生文件时如果得到了文件的file_info，就在应答头里面加上文件的last-modified时间
4. 修复一些错误的返回值
Merge pull request #177 from cfsego/merge

Merge changes between 1.2.5 and 1.2.6
merge CHANGES file between nginx 1.2.5 and 1.2.6
Merge pull request #179 from cfsego/merge

merge CHANGES file between nginx 1.2.5 and 1.2.6
modify GMT time format from UTC+0800 to GMT
fixed the compile problem in Solaris 11

fixed the different Makefile install format
fixed the different structure packed grammar
Merge pull request #182 from yaoweibin/fix_solairs

fixed the compile problem in Solaris 11
New feature: sysguard suppport memfree.
Merge pull request #184 from lifeibo/sysguard_memfree3

New feature: sysguard suppport memfree.
Add support for geoip regional database
Add the cleanup code for the region db connection
Merge pull request #185 from jasonlfunk/master

Add support for GeoIP Regional Database
1. fix read corrupted large file bug.
2. remove some redundant code.
increased the size of error string to 4096 bytes
Merge pull request #186 from zhuzhaoyuan/errstr-size

Increase the size of the error string to 4096 bytes