Added backend and refactored frond-end to support it.

* Removed unecesery home page
* Added PHP Api that provides auth and replaces the json-server for data storage
* Added support for alternate geocode-api
* Added registration  page

api/config/db.php.example

@@ -0,0 +1,13 @@
+<?php
+
+$host = 'localhost';
+$dbname = 'ttapi';
+$username = 'ttapi';
+$password = '';      
+
+try {
+    $pdo = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
+    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+} catch (PDOException $e) {
+    echo "Connection failed: " . $e->getMessage();
+}