fixed the typo of docs in consistent hash module
release tengine-1.4.6
Merge pull request #50 from yaoweibin/tengine-1.4.6-2

Tengine 1.4.6
add document for upstream keepalive_timeout directive
add document files for upstream keepalive_timeout directive
fix typo, update the index_cn.html, add new information
Merge pull request #51 from jinglong/master

add document files for upstream keepalive_timeout directive
Merge pull request #52 from yaoweibin/update_20130522

fix typo, update the index_cn.html, add new information
fix a configure error in keepalive_timeout.html
Merge pull request #54 from jinglong/master

fix a configure error in keepalive_timeout.html