Revert "Remove MSU redirect to allow staging/dev MSU commons"

This reverts commit 5d47cf2.

Author: mikethicke

config/all/nginx/templates/hcommons.conf.template

@@ -25,9 +25,9 @@ server {
   listen 80 default_server;
   server_name ~^(?<sitename>[\w-]+\.)?(?<subdomain>[\w-]+)\.${DOMAIN_NAME}$ action.mla.org symposium.mla.org *.action.mla.org *.symposium.mla.org commons.msu.edu *.commons.msu.edu;
 
-  #if ( $subdomain = "msu" ) {
-  #  rewrite ^ "https://${sitename}commons.msu.edu$uri" permanent;
-  #}
+  if ( $subdomain = "msu" ) {
+    rewrite ^ "https://${sitename}commons.msu.edu$uri" permanent;
+  }
 
   root "/app/site/web";
   index index.php index.htm index.html;