Bug 7313: Untranslatable strings in 'Search to hold' feature

Bug 7313: Untranslatable strings in 'Search to hold' feature

Changed the javascript to include markup for translation _(...) in result
list and detail page tool bars.

Also changed the text shown for each result to match the text in the toolbar
to make things more consistent.

To test:
- Apply patch
- Run "perl translate update <your language code>"
- Open .po file for staff and check for "Place hold on" and "Forget"
- Translate those
- Run "perl translate install <your language code>"
- Activate "Search for hold" feature in patron account
- Do a search and check tool bar on top of result list
- Check link text shown in result list
- Check detail page

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
(cherry picked from commit 8374ecbcd68fc0f6f9bc13ed7b45448920490bba)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>