#409 - Fix HTTPs-only message on OAuth Clients page.

Without this change, the layout of the error message page is wrong, and the
message is different from the one used for OAuth Providers page.
Merge pull request #522 from arvindsv/fix_oauth_clients_page_https_message

#409 - Fix HTTPs-only message on OAuth Clients page.
Output working directory in console output and when polling fails.

When the git commands that update a material fail, this makes it easy to
find the flyweight directory on the server for debugging.