Fix typo on /request/upload_response

This fixes a typo which cased the following to be displayed when
uploading a response:

    Respond to the FOI request 'FOI Request'FOI User

It now says (correctly):

    Respond to the FOI request 'FOI Request' made by FOI User

Thanks to Ben Fairless for the original implementation of this commit.
Merge branch 'issues/1510-upload-response-typo' into rails-3-develop