add disable_page_redirect support

vz/azbyka/update_nginx.sh

@@ -42,10 +42,16 @@ cat <<EOF
         access_log  /var/log/nginx/$ACONF-access.log logdetail;
     }
 
+EOF
+if [ "$NGINX_disable_page_redirect" != 1 ] ; then
+cat <<EOF
     location = /$SUBDIR {
         return 301 /$SUBDIR/\$is_args\$args;
     }
+EOF
+fi
 
+cat <<EOF
     location /$SUBDIR/ {
         root $DROOT;
 
@@ -61,6 +67,7 @@ cat <<EOF
         proxy_pass $UPSTREAM;
         include include/trans-proxy.conf;
 EOF
+
 if [ "$NGINX_disable_cache" != 1 ] ; then
 cat <<EOF
         # rewrite to cache if allowed