Merge pull request #501 from hoellen/webmail-root

Add posibilty to run webmail on root '/'

core/nginx/conf/nginx.conf

@@ -84,9 +84,11 @@ http {
 
       # Actual logic
       {% if WEBMAIL != 'none' %}
+      {% if WEB_WEBMAIL != '/' %}
       location / {
         return 301 {{ WEB_WEBMAIL }};
       }
+      {% endif %}
 
       location {{ WEB_WEBMAIL }} {
         rewrite ^({{ WEB_WEBMAIL }})$ $1/ permanent;