Limited error information returned to user.
Limited error information returned to user.

* _get_archive would give the exception to the user, now it just says
  "Internal server error."

ucrcsedept/galah,galah-group/galah,ucrcsedept/galah,brownhead/galah,ucrcsedept/galah,brownhead/galah,brownhead/galah,galah-group/galah,galah-group/galah