added the TODO list
added static keyword for some local gloabl variables
updated the README
fixed typo
Fix links in README

Links have a trailing > that is breaking the links.  Removed brackets to fix.
Merge pull request #59 from jgable/patch-1

Fix links in README
fixed the compatible problem with nginx-1.3.10

most of the changes are in the tcp log module
Merge branch 'master' of github.com:yaoweibin/nginx_tcp_proxy_module
Merge branch 'master' into develop