Add whitespace to django template tags.

(imported from commit 595328eab56d018319749234134e6b4e7ea0849f)

templates/zerver/api_endpoints.html

@@ -41,14 +41,14 @@
             <dd>{{ return.1 }}</dd>
         {% endfor %}
         </dl>
-        {%if blurb.example_request %}
+        {% if blurb.example_request %}
         <h3>Example request</h3>
         {% for lang, req in blurb.example_request.items %}
             <div class="example_request {{ lang }}">
                 {{ req }}
             </div>
         {% endfor %}{% endif %}
-        {%if blurb.rendered_response %}
+        {% if blurb.rendered_response %}
         <h3>Example response</h3>
         <div class="example_response">
             {{ blurb.rendered_response }}

templates/zerver/compose.html

@@ -10,7 +10,7 @@
                 <i class="icon-vector-bullhorn"></i><span class="compose_stream_button_label">&nbsp;&nbsp;New stream message</span>
               </button>
             </span>
-            {%if not embedded %}
+            {% if not embedded %}
             <span class="new_message_button">
               <button type="button" class="btn btn-large compose_private_button"
                       id="left_bar_compose_private_button_big" title="New private message (C)">

templates/zerver/initial_invite_page.html

@@ -32,4 +32,4 @@
     <button id="submit_invitation" class="btn btn-primary" data-loading-text="Next">Next »</button>
     </form>
 </div>
-{%endblock %}
+{% endblock %}