Bug 20420: Remove unnecessary [% KOHA_VERSION %] from OPAC third-party sources

Bug 20420: Remove unnecessary [% KOHA_VERSION %] from OPAC third-party sources

This patch removes [% KOHA_VERSION %] from the <script> tag for some
third-party JavaScript sources. [% KOHA_VERSION %] should only be used
for Koha's JS resources.

To test, apply the patch and enable the SocialNetworks and
NovelistSelect* preferences.

In the OPAC, view the detail page for a bibliographic record. In the
right-hand sidebar you should see social network icons for Google+ and
Twitter. Clicking either of them should trigger a sharing popup window.

If you have Novelist credentials and can enable the feature for the OPAC
you should see Novelist content in the place specified in your
preferences.

If you don't have Novelist credentials, put some random text in the
NovelistSelectProfile system preference. Looking at the detail page in
the OPAC, view source. You should see a link to Novelist JS around line
1020 of the source. Clicking the link should show JavaScript. This
confirms that the path is correct, thus the bug has been fixed.

Note: The QA tool will complain that [% KOHA_VERSION %] is missing. This
is a false positive.

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>