Add modelline to all templates.

aleksis/apps/chronos/templates/chronos/all.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 
 {% load i18n static %}

aleksis/apps/chronos/templates/chronos/hint_form.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 {% load material_form martortags static widget_tweaks %}
 

aleksis/apps/chronos/templates/chronos/hints.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 {% load material_form %}
 {% load martortags %}

aleksis/apps/chronos/templates/chronos/my_timetable.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 
 {% load i18n static %}

aleksis/apps/chronos/templates/chronos/substitutions.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 
 {% load i18n static %}

aleksis/apps/chronos/templates/chronos/substitutions_print.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 {% load common %}
 

aleksis/apps/chronos/templates/chronos/timetable.html

+{# -*- engine:django -*- #}
+
 {% extends 'core/base.html' %}
 
 {% load data_helpers static i18n %}