Bug 35925: Adjust default purchase suggestion notices to use TT

Bug 35925: Adjust default purchase suggestion notices to use TT

1. Apply patch
2. reset_all (or start your testing environment in the first place)
3. Set syspref EmailPurchaseSuggestions to "email address of library"
4. Under Administration > Libraries, enter an email address for at least
   one library
5. Go to "my account", and enter a Primary email and Phone number
6. Go to the Acquisitions module > Suggestions page
7. Click "New purchase suggestion", and fill in values for, at minimum:
    Bibliographic information:
        Title
        Author
        Copyright date
        ISBN/ISSN
        Publisher
        Publication place
        Collection title
        Document type
        Reason for suggestion
        Notes
    Acquisition information:
        Library (set to the library you entered an email for in step 4)
        Copies
8. Submit the suggestion
9. Set the suggestion status to "Rejected"
    a. Check the checkbox next to the suggestion
    b. Set the "Mark selected as" drop-down (below the table) to Rejected
    c. Select a value for the "Reason" drop-down
    d. Click the Submit button
10. Set the suggestion status to "Accepted" (as above)
11. Set the suggestion status to "Ordered" (as above)
12. Return to "my account" and open the Notices tab
--> There should be notices suggestion declined, suggestion accepted,
    suggestion ordered, and (depending on settings) new suggestion*
13. Open each notice, and confirm the all information was filled in
    correctly

* New suggestion will be there if you're using default KTD settings/data
and logged in as the root user. If it is not there, query the database
(by command line or SQL report) to see the generated notice text:
SELECT * FROM message_queue WHERE letter_code = 'NEW_SUGGESTION'

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>