Better error handling on series display in basic view

cps/basic.py

@@ -19,7 +19,6 @@
 #  along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 
-from cps.pagination import Pagination
 from flask import Blueprint
 from flask_babel import gettext as _
 from flask_babel import get_locale

cps/templates/basic_detail.html

@@ -31,7 +31,7 @@
 <h2>Details</h2>
 
 {% if entry.series|length > 0 %}
-  <p>{{ _("Book %(index)s of %(range)s", index=entry.series_index | formatfloat(2), range=(entry.series[0].name)|safe) }}</p>
+  <p>{{ _("Book %(index)s of %(range)s", index=entry.series_index|formatfloat(2), range=entry.series[0].name|e) }}</p>
 {% endif %}
 
 {% if entry.languages|length > 0 %}