Help Request Information should be included

* Added email field results to sender email when user is unknown
* Added name field results to user_name when user is unknown
* Added name to body of notification email

* CurateND overrides sender_email in help_request so it must all be
  updated to see all changes take effect.

dltp-255#

* Fix rspec test for help_request.
* Simplify sender_email and user_name defs.
* Fix Firefox specific issue where modal does not appear correctly by changing order of javascript calls.
* Fix rspec test for notification mailer.
Merge pull request #58 from ndlib/dltp-255

Help Request Information should be included