Bug 27882: Move external search results links out of page heading

Bug 27882: Move external search results links out of page heading

This patch modifies the JavaScript which adds search result information
to the OPAC search results page which is returned from OverDrive,
Recorded Books, or Open Library. The information now displays below the
page heading instead of inside it.

To test you must have OpenLibrarySearch enabled, OverDrive-related
preferences populated (OverDriveClientKey, OverDriveClientSecret,
OverDriveLibraryID), or RecordedBooks preferences (RecordedBooksClientSecret,
RecordedBooksDomain, RecordedBooksLibraryID).

This patch was written with OverDrive and Open Library results active.

- Apply the patch and perform a search in the OPAC catalog.
- On the search results page you should see results for your external
  services appear below the page heading ("You search returned..."),
  e.g.

  "Found 20257 results in the library's OpenLibrary collection"
  "Found 337 results in the library's OverDrive collection"

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>