Bug 26102: Prevent XSS when To.json is used: catalogue/results.tt

Bug 26102: Prevent XSS when To.json is used: catalogue/results.tt

To test, perform a search in the catalogue and verify that search term
highlighting works correctly.

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 0de86fd323545796d57d2e289c10a33970050716)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
(cherry picked from commit 2a56d56f434c777b017c300cb906964ae15f52f4)

Signed-off-by: Wainui Witika-Park <wainuiwitikapark@catalyst.net.nz>