Added embedded login, and all iframe links open in new tab

templates/registration/login_embed.html

@@ -0,0 +1,11 @@
+{% extends 'base_embed.html' %}
+
+{% block title %}Login{% endblock %}
+
+{% block content %}
+<div style="text-align:center;">
+<h1>R<small>ig</small> I<small>nformation</small> G<small>athering</small> S<small>ystem</small></h1>
+</div>
+{% include 'registration/loginform.html' %}
+
+{% endblock %}