Override admin index

Add button to return to main index

app/templates/admin/index.html

+{% extends "admin/master.html" %}
+
+{% block title %}Admin - ICS Inventory{% endblock %}
+
+{% block body %}
+<h2>Use the admin interface with care</h2>
+
+<!-- flask-admin uses bootstrap 3 -->
+<a class="btn btn-primary" href="{{ url_for('main.index') }}">ICS Inventory</a>
+{% endblock %}