Add Remote Flow (#43) and PHP Unit Tests from dansup (#37)

Now the code is following most of PSR
Various changes from various branches (some testing will be required)
Fixed various issues

tests/Unit/ProfileObjectTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+
+class ProfileObjectTest extends TestCase
+{
+    public function testLibraryInstalled()
+    {
+        $this->assertTrue(class_exists('\Activitypub_profile'));
+    }
+
+    public function testProfileObject()
+    {
+        // Mimic proper ACCEPT header
+        $_SERVER['HTTP_ACCEPT'] = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams';
+
+        // Fetch profile
+        $user = \Profile::getKV('id', 1);
+        // Fetch ActivityPub Actor Object representation
+        $profile = \Activitypub_profile::profile_to_array($user);
+
+        $this->assertTrue(is_array($profile));
+
+        $this->assertTrue(isset($profile['inbox']));
+        $this->assertTrue(isset($profile['outbox']));
+    }
+}