Bug 12882 - Translations: Resolve ambiguity for word "checked" in Z39.50 server admin...

Bug 12882 - Translations: Resolve ambiguity for word "checked" in Z39.50 server administration

This patch resolves the ambiguity of the word "Checked" for Z39.50
server administration.

To test:
Apply patch
In staff client, go to Home:Administration:Z39.50/SRU servers
Result: Column heading of 6th column should show "Preselected" (instead
of "Checked")

Edit or create new server for Z39.50 and SRU
Result: Checkbox underneath "Password" should have label "Preselected
(searched by default):"

Click "Help" at top right of screen
Result: Wording changed for selecting targets as default.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>