remove the cached connection from the upstream retrying function
Merge branch 'develop' into fix_keepalive_retry
added the retry_cached_connection directive
round robin: optimize loop in ngx_http_upstream_init_round_robin()

 It is a trivial patch to move continue statement from inner loop to outer
 loop.
Merge pull request #279 from chobits/master

round robin: optimize loop in ngx_http_upstream_init_round_robin()
bugfix when use chrome and safari.
Merge pull request #281 from taoyuanyuan/t

Bugfix: fixed a bug of trim module.
added request_non_buffered feature to http proxy and fastcgi module

Now the request body can be passed chunk by chunk to upstream, while
the whole body need be buffered before.
Merge pull request #285 from yaoweibin/request_no_buffering3

added request_non_buffered feature to http proxy and fastcgi module
added the Changelog for tengine-1.5.0
Merge pull request #286 from yaoweibin/tengine-1.5.0-2

added the Changelog for tengine-1.5.0
Update ngx_http_request_body.c

fix issue #288
Merge pull request #289 from zzjin/patch-1

Update ngx_http_request_body.c
bumped to tengine-1.5.1
Merge pull request #290 from yaoweibin/bump-tengine-1.5.1

bumped to tengine-1.5.1
add sample lines in document for DSO modules
Merge pull request #293 from icedfish/master

Add sample lines in nginx.conf for DSO modules
Update ngx_http_trim_filter_module_cn.md

修改文档
Update ngx_http_trim_filter_module_cn.md

update
Merge pull request #294 from taoyuanyuan/t

it looks good to me