lua parser and redis2 questions

[gregr401]

Well, all this seems to be tracked back to an env issue on my side,
argh.  I ended up setting a lua_package_cpath and now parsing replies is
working exactly as they should (interesting that some other features
were working, tho, hmmm). 

Thanks again for the above help and validation agentzh and logar!

nginx + redis pipelining + lua FTW =)

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,203154,204376#msg-204376