Revert "upgraded ngx_lua to 0.5.0rc31."

This reverts commit 950eafe167.

We should prepare for a stable version 1.0.15.10 first :)

util/mirror-tarballs

@@ -135,7 +135,7 @@ mv chaoslawful-drizzle-nginx-module-* drizzle-nginx-module-$ver || exit 1
 
 #################################
 
-ver=0.5.0rc31
+ver=0.5.0rc30
 $root/util/get-tarball "http://github.com/chaoslawful/lua-nginx-module/tarball/v$ver" -O lua-nginx-module-$ver.tar.gz || exit 1
 tar -xzf lua-nginx-module-$ver.tar.gz || exit 1
 mv chaoslawful-lua-nginx-module-* ngx_lua-$ver || exit 1

util/ver

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 main_ver=1.0.15
-minor_ver=11rc1
+minor_ver=9
 version=$main_ver.$minor_ver
 echo $version