Laravel 5.6 updates

Travis config update

Removed HHVM script as Laravel no longer support HHVM after releasing 5.3

vendor/barryvdh/laravel-debugbar/src/Console/ClearCommand.php

@@ -16,7 +16,7 @@ class ClearCommand extends Command
         parent::__construct();
     }
 
-    public function fire()
+    public function handle()
     {
         $this->debugbar->boot();
 

vendor/barryvdh/laravel-debugbar/src/Console/PublishCommand.php

@@ -1,39 +0,0 @@
-<?php
-namespace Barryvdh\Debugbar\Console;
-
-use Illuminate\Console\Command;
-
-/**
- * Publish the Debugbar assets to the public directory
- *
- * @author Barry vd. Heuvel <barryvdh@gmail.com>
- * @deprecated No longer needed because of the AssetController
- */
-class PublishCommand extends Command
-{
-    /**
-     * The console command name.
-     *
-     * @var string
-     */
-    protected $name = 'debugbar:publish';
-
-    /**
-     * The console command description.
-     *
-     * @var string
-     */
-    protected $description = 'Publish the Debugbar assets';
-
-    /**
-     * Execute the console command.
-     *
-     * @return void
-     */
-    public function fire()
-    {
-        $this->info(
-            'NOTICE: Since laravel-debugbar 1.7.x, publishing assets is no longer necessary. The assets in public/packages/barryvdh/laravel-debugbar and maximebf/php-debugbar can be safely removed.'
-        );
-    }
-}