Bug 17682: Change URL for Google Scholar in OPACSearchForTitleIn

Bug 17682: Change URL for Google Scholar in OPACSearchForTitleIn

1)apply patch
2) go into administration --> search for OPACSearchForTitleIn
3) *click to edit*
4) look at the link and read the google scholar one.
5) check that the start link is https://scholar.google.com.
6) http://www.scholar.google is incorrect

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>