upgraded ngx_echo to 0.42 and ngx_devel_kit ot 0.2.18.

util/mirror-tarballs

@@ -149,7 +149,7 @@ rm -rf no-pool-nginx-$ver
 
 #################################
 
-ver=0.41
+ver=0.42
 $root/util/get-tarball "http://github.com/agentzh/echo-nginx-module/tarball/v$ver" -O echo-nginx-module-$ver.tar.gz || exit 1
 tar -xzf echo-nginx-module-$ver.tar.gz || exit 1
 mv agentzh-echo-nginx-module-* echo-nginx-module-$ver || exit 1
@@ -163,7 +163,7 @@ mv agentzh-xss-nginx-module-* xss-nginx-module-$ver || exit 1
 
 #################################
 
-ver=0.2.17
+ver=0.2.18
 $root/util/get-tarball "http://github.com/simpl/ngx_devel_kit/tarball/v$ver" -O ngx_devel_kit-$ver.tar.gz
 tar -xzf ngx_devel_kit-$ver.tar.gz || exit 1
 mv simpl-ngx_devel_kit-* ngx_devel_kit-$ver || exit 1