Upgrade to L5 + huge refactor + more. closes #2

New stuff:
- Signup + email confirmation.
- Updated authentication strategy with remember cookies. closes #5
- New search system with some example gambits! This is cool - check out
the source. Fulltext drivers will be implemented as decorators
overriding the EloquentPostRepository’s findByContent method.
- Lay down the foundation for bootstrapping the Ember app.
- Update Web layer’s asset manager to properly publish CSS/JS files.
- Console commands to run installation migrations and seeds.

Refactoring:
- New structure: move models, repositories, commands, and events into
their own namespaces, rather than grouping by entity.
- All events are classes.
- Use L5 middleware and command bus implementations.
- Clearer use of repositories and the Active Record pattern.
Repositories are used only for retrieval of ActiveRecord objects, and
then save/delete operations are called directly on those ActiveRecords.
This way, we don’t over-abstract at the cost of Eloquent magic, but
testing is still easy.
- Refactor of Web layer so that it uses the Actions routing
architecture.
- “Actor” concept instead of depending on Laravel’s Auth.
- General cleanup!

src/Core/Models/CommentPost.php

@@ -0,0 +1,162 @@
+<?php namespace Flarum\Core\Models;
+
+use Flarum\Core\Formatter\FormatterManager;
+use Flarum\Core\Events\PostWasPosted;
+use Flarum\Core\Events\PostWasRevised;
+use Flarum\Core\Events\PostWasHidden;
+use Flarum\Core\Events\PostWasRestored;
+
+class CommentPost extends Post
+{
+    /**
+     * The text formatter instance.
+     *
+     * @var \Flarum\Core\Formatter\Formatter
+     */
+    protected static $formatter;
+
+    /**
+     * Add an event listener to set the post's number, and update the
+     * discussion's number index, when inserting a post.
+     *
+     * @return void
+     */
+    public static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($post) {
+            $post->number = ++$post->discussion->number_index;
+            $post->discussion->save();
+        });
+    }
+
+    /**
+     * Create a new instance in reply to a discussion.
+     *
+     * @param  int  $discussionId
+     * @param  string  $content
+     * @param  int  $userId
+     * @return static
+     */
+    public static function reply($discussionId, $content, $userId)
+    {
+        $post = new static;
+
+        $post->content       = $content;
+        $post->content_html  = static::formatContent($post->content);
+        $post->time          = time();
+        $post->discussion_id = $discussionId;
+        $post->user_id       = $userId;
+        $post->type          = 'comment';
+
+        $post->raise(new PostWasPosted($post));
+
+        return $post;
+    }
+
+    /**
+     * Revise the post's content.
+     *
+     * @param  string  $content
+     * @param  \Flarum\Core\Models\User  $user
+     * @return $this
+     */
+    public function revise($content, $user)
+    {
+        if ($this->content !== $content) {
+            $this->content = $content;
+            $this->content_html = static::formatContent($this->content);
+
+            $this->edit_time = time();
+            $this->edit_user_id = $user->id;
+
+            $this->raise(new PostWasRevised($this));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Hide the post.
+     *
+     * @param  \Flarum\Core\Models\User  $user
+     * @return $this
+     */
+    public function hide($user)
+    {
+        if (! $this->hide_time) {
+            $this->hide_time = time();
+            $this->hide_user_id = $user->id;
+
+            $this->raise(new PostWasHidden($this));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Restore the post.
+     *
+     * @param  \Flarum\Core\Models\User  $user
+     * @return $this
+     */
+    public function restore($user)
+    {
+        if ($this->hide_time !== null) {
+            $this->hide_time = null;
+            $this->hide_user_id = null;
+
+            $this->raise(new PostWasRestored($this));
+        }
+
+        return $this;
+    }
+
+    /**
+     * Get the content formatter as HTML.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    public function getContentHtmlAttribute($value)
+    {
+        if (! $value) {
+            $this->content_html = $value = static::formatContent($this->content);
+            $this->save();
+        }
+
+        return $value;
+    }
+
+    /**
+     * Get text formatter instance.
+     *
+     * @return \Flarum\Core\Formatter\FormatterManager
+     */
+    public static function getFormatter()
+    {
+        return static::$formatter;
+    }
+
+    /**
+     * Set text formatter instance.
+     *
+     * @param  \Flarum\Core\Formatter\FormatterManager  $formatter
+     */
+    public static function setFormatter(FormatterManager $formatter)
+    {
+        static::$formatter = $formatter;
+    }
+
+    /**
+     * Format a string of post content using the set formatter.
+     *
+     * @param  string  $content
+     * @return string
+     */
+    protected static function formatContent($content)
+    {
+        return static::$formatter->format($content);
+    }
+}