Traffic server: Clean up request line rewriting
Including more lua files in distribution.
modhtp: For 0.7, remove messages to stderr when duplicate callbacks are encountered
modhtp: Remove another stderr message for 0.7.x
Sanity checks for nginx-ironbee module.  Most importantly, don't stop
nginx working if ironbee is loaded but not configured.
Patch contributed by Zhuo Yuan (袁茁) in
https://github.com/ironbee/ironbee/pull/36.patch
revised by niq.