[mod] default template modifications

- more smartphone friendly
- more text browser friendly
- next button always on the right
- in case of small screen supporting touch event, categories are displayed on one line with a scroll

searx/templates/default/results.html

@@ -1,7 +1,7 @@
 {% extends "default/base.html" %}
 {% block title %}{{ q }} - {% endblock %}
 {% block content %}
-<div class="right"><a href="{{ url_for('preferences') }}" id="preferences"><span>preferences</span></a></div>
+<div class="preferences_container right"><a href="{{ url_for('preferences') }}" id="preferences"><span>preferences</span></a></div>
 <div class="small search center">
     {% include 'default/search.html' %}
 </div>
@@ -80,7 +80,7 @@
             </form>
         {% endif %}
         <form method="{{ method or 'POST' }}" action="{{ url_for('index') }}">
-            <div class="left">
+            <div class="right">
             {% for category in selected_categories %}
             <input type="hidden" name="category_{{ category }}" value="1"/>
             {% endfor %}
@@ -89,6 +89,8 @@
             <input type="submit" value="{{ _('next page') }} >>" />
             </div>
         </form>
+
+        <br />
     </div>
     {% endif %}
 </div>