ikiwiki: Update UI messages and minor refactoring

- In manage page, show a message to create new blog/wiki when there are
  none.

- Elaborate on what gets deleted in delete page.

- Add Ikiwiki in menu item label.  This is in order to allow for other
  Wiki/Blog modules.

- Indentation changes.

plinth/modules/ikiwiki/__init__.py

@@ -30,4 +30,5 @@ depends = ['plinth.modules.apps']
 def init():
     """Initialize the ikiwiki module."""
     menu = cfg.main_menu.get('apps:index')
-    menu.add_urlname(_('Wiki & Blog'), 'glyphicon-edit', 'ikiwiki:index', 38)
+    menu.add_urlname(_('Wiki & Blog (Ikiwiki)'), 'glyphicon-edit',
+                     'ikiwiki:index', 38)

plinth/modules/ikiwiki/forms.py

@@ -26,7 +26,7 @@ from gettext import gettext as _
 class IkiwikiForm(forms.Form):
     """ikiwiki configuration form."""
     enabled = forms.BooleanField(
-        label=_('Enable ikiwiki site'),
+        label=_('Enable Ikiwiki'),
         required=False)
 
 
@@ -35,8 +35,11 @@ class IkiwikiCreateForm(forms.Form):
     type = forms.ChoiceField(
         label=_('Type'),
         choices=[('wiki', 'Wiki'), ('blog', 'Blog')])
+
     name = forms.CharField(label=_('Name'))
+
     admin_name = forms.CharField(label=_('Admin Account Name'))
+
     admin_password = forms.CharField(
         label=_('Admin Account Password'),
         widget=forms.PasswordInput())

plinth/modules/ikiwiki/templates/ikiwiki.html

@@ -22,15 +22,15 @@
 
 {% block content %}
 
-<p>When enabled, the ikiwiki site will be available from <a href="/ikiwiki">
+  <p>When enabled, the blogs and wikis will be available
-    /ikiwiki</a> path on the web server.</p>
+    from <a href="/ikiwiki">/ikiwiki</a>.</p>
 
-<form class="form" method="post">
+  <form class="form" method="post">
     {% csrf_token %}
 
     {{ form|bootstrap }}
 
     <input type="submit" class="btn btn-primary" value="Update setup"/>
-</form>
+  </form>
 
 {% endblock %}

plinth/modules/ikiwiki/templates/ikiwiki_delete.html

@@ -24,7 +24,9 @@
 
   <h3>Delete Wiki/Blog <em>{{ name }}</em></h3>
 
-  <p>Delete this wiki/blog permanently?</p>
+  <p>This action will remove all the posts, pages and comments
+    including revision history.  Delete this wiki/blog
+    permanently?</p>
 
   <form class="form" method="post">
     {% csrf_token %}

plinth/modules/ikiwiki/templates/ikiwiki_manage.html

@@ -36,6 +36,13 @@
 
   <div class="row">
     <div class="col-sm-6">
+      {% if not sites %}
+        <p>No wikis or blogs available.</p>
+        <p>
+          <a class="btn btn-primary btn-md"
+             href="{% url 'ikiwiki:create' %}">Create a Wiki or Blog</a>
+        </p>
+      {% else %}
         <div class="list-group">
           {% for site in sites %}
             <div class="list-group-item clearfix">
@@ -55,6 +62,7 @@
             </div>
           {% endfor %}
         </div>
+      {% endif %}
     </div>
   </div>