show coming soon text for speakers, schedule and events. fix #93.

src/program/templates/event_list.html

@@ -1,6 +1,7 @@
 {% extends 'program_base.html' %}
 
 {% block program_content %}
+{% if event_list %}
 <p class="lead">
   An alphabetical list of all talks, workshops, keynotes and other events
   at {{ camp.title }}.
@@ -21,4 +22,7 @@
   {% endif %}
   {% endfor %}
 </div>
+{% else %}
+  <h2>Events for {{ camp.title }} coming soon!</h2>
+{% endif %}
 {% endblock program_content %}

src/program/templates/schedule_overview.html

@@ -1,6 +1,7 @@
 {% extends 'schedule_base.html' %}
 
 {% block schedule_content %}
+{% if eventinstances %}
 {% for day in camp.camp_days %}
   {{ day.lower.date|date:"D d/m" }} <br />
   <div style="display: flex; flex-wrap: wrap;">
@@ -19,5 +20,8 @@
   </div>
 <hr />
 {% endfor %}
+{% else %}
+  <h2>Schedule for {{ camp.title }} coming soon!</h2>
+{% endif %}
 
 {% endblock schedule_content %}

src/program/templates/speaker_list.html

@@ -1,6 +1,7 @@
 {% extends 'program_base.html' %}
 
 {% block program_content %}
+{% if speaker_list %}
 <p class="lead">
   An alphabetical list of all speakers, workshop hosts and other
   event anchors at BornHack 2016.
@@ -13,4 +14,7 @@
   </a>
   {% endfor %}
 </div>
+{% else %}
+  <h2>Speakers for {{ camp.title }} coming soon!</h2>
+{% endif %}
 {% endblock program_content %}