Sort out web syndication feeds, and add JSON feeds, fixes issue #52

resources/views/articles/atom.blade.php

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+    <title>Atom feed for {{ config('app.display_name') }}’s blog</title>
+    <link rel="self" href="{{ config('app.url') }}/blog/feed.atom" />
+    <id>{{ config('app.url')}}/blog</id>
+    <updated>{{ $articles[0]->updated_at->toAtomString() }}</updated>
+
+    @foreach($articles as $article)
+    <entry>
+        <title>{{ $article->title }}</title>
+        <link href="{{ config('app.url') }}{{ $article->link }}" />
+        <id>{{ config('app.url') }}{{ $article->link }}</id>
+        <updated>{{ $article->updated_at->toAtomString() }}</updated>
+        <content>{{ $article->main }}</content>
+        <author>
+            <name>{{ config('app.display_name') }}</name>
+        </author>
+    </entry>
+    @endforeach
+</feed>