initial commit of the new template 'oscar'

* base.html mostly implemented
* stats.html implemented
* about.html implemented
* most of preferences.html implemented
* using bootstrap.js

searx/templates/oscar/index.html

@@ -0,0 +1,6 @@
+{% extends "oscar/base.html" %}
+{% block content %}
+<div class="center">
+    <div class="title"><h1>searx</h1></div>
+</div>
+{% endblock %}