Bug 16718 - Translatability: Fix problems with sentence splitting by <strong> in...

Bug 16718 - Translatability: Fix problems with sentence splitting by <strong> in about.tt

This patch removes sentence splitting by <strong> tags in
koha-tmpl/intranet-tmpl/prog/en/modules/about.tt for better translatability.

Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 0712048030c44ba731780916935f6d9d352d4c0b)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>