Bug 1253 Updating the VNFD via ngUI breaks charms execution

 * Fixed the bug by adding the symbolic link while extracting
   the file and while doing tar.
 * The file upload size is increased upto 50MB in UI

Change-Id: Ib1de6129018f11ce863a12a60e2ffab04187e795
Signed-off-by: Barath Kumar R <barath.r@tataelxsi.co.in>
diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index d686603..1d3f29d 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -20,7 +20,7 @@
     server_name  localhost;
     root   /usr/share/nginx/html;
     index  index.html index.htm;
-    client_max_body_size 15M;
+    client_max_body_size 50M;
 
     location /osm {
         proxy_pass https://nbi:9999;