Add a comment on why we are using backward compatible ciphers.

lib/support/nginx/gitlab-ssl

@@ -19,7 +19,7 @@
 ## - installing an old version of Nginx with the chunkin module [2] compiled in, or
 ## - using a newer version of Nginx.
 ##
-## At the time of writing we do not know if either of these theoretical solutions works. 
+## At the time of writing we do not know if either of these theoretical solutions works.
 ## As a workaround users can use Git over SSH to push large files.
 ##
 ## [0] https://git.kernel.org/cgit/git/git.git/tree/Documentation/technical/http-protocol.txt#n99
@@ -42,7 +42,7 @@ server {
   listen *:80 default_server;
   server_name YOUR_SERVER_FQDN; ## Replace this with something like gitlab.example.com
   server_tokens off; ## Don't show the nginx version number, a security best practice
-  
+
   ## Redirects all traffic to the HTTPS host
   root /nowhere; ## root doesn't have to be a valid path since we are redirecting
   rewrite ^ https://$server_name$request_uri? permanent;
@@ -65,6 +65,7 @@ server {
   ssl_certificate /etc/nginx/ssl/gitlab.crt;
   ssl_certificate_key /etc/nginx/ssl/gitlab.key;
 
+  # GitLab needs backwards compatible ciphers to retain compatibility with Java IDEs
   ssl_ciphers 'ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4';
 
   ssl_protocols  TLSv1 TLSv1.1 TLSv1.2;
@@ -72,7 +73,7 @@ server {
 
   ssl_prefer_server_ciphers   on;
 
-  ## [WARNING] The following header states that the browser should only communicate 
+  ## [WARNING] The following header states that the browser should only communicate
   ## with your server over a secure connection for the next 24 months.
   add_header Strict-Transport-Security max-age=63072000;
   add_header X-Frame-Options SAMEORIGIN;