Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/barryvdh/laravel-snappy/src/IlluminateSnappyPdf.php

@@ -1,108 +0,0 @@
-<?php namespace Barryvdh\Snappy;
-
-use Knp\Snappy\Pdf;
-use Illuminate\Filesystem\Filesystem;
-
-class IlluminateSnappyPdf extends Pdf {
-    /**
-     * @var \Illuminate\Filesystem\Filesystem
-     */
-	protected $fs;
-
-	/**
-	 * @param \Illuminate\Filesystem\Filesystem
-     * @param string $binary
-     * @param array $options
-	 */
-	public function __construct(Filesystem $fs, $binary, array $options, array $env)
-	{
-		parent::__construct($binary, $options, $env);
-
-		$this->fs = $fs;
-	}
-
-    /**
-     * Wrapper for the "file_get_contents" function
-     *
-     * @param string $filename
-     *
-     * @return string
-     */
-    protected function getFileContents($filename)
-    {
-        return $this->fs->get($filename);
-    }
-
-    /**
-     * Wrapper for the "file_exists" function
-     *
-     * @param string $filename
-     *
-     * @return boolean
-     */
-    protected function fileExists($filename)
-    {
-        return $this->fs->exists($filename);
-    }
-
-    /**
-     * Wrapper for the "is_file" method
-     *
-     * @param string $filename
-     *
-     * @return boolean
-     */
-    protected function isFile($filename)
-    {
-        return strlen($filename) <= PHP_MAXPATHLEN && $this->fs->isFile($filename);
-    }
-
-    /**
-     * Wrapper for the "filesize" function
-     *
-     * @param string $filename
-     *
-     * @return integer or FALSE on failure
-     */
-    protected function filesize($filename)
-    {
-        return $this->fs->size($filename);
-    }
-
-    /**
-     * Wrapper for the "unlink" function
-     *
-     * @param string $filename
-     *
-     * @return boolean
-     */
-    protected function unlink($filename)
-    {
-        return $this->fs->delete($filename);
-    }
-
-    /**
-     * Wrapper for the "is_dir" function
-     *
-     * @param string $filename
-     *
-     * @return boolean
-     */
-    protected function isDir($filename)
-    {
-        return $this->fs->isDirectory($filename);
-    }
-
-    /**
-     * Wrapper for the mkdir function
-     *
-     * @param string $pathname
-     *
-     * @return boolean
-     */
-    protected function mkdir($pathname)
-    {
-        return $this->fs->makeDirectory($pathname, 0777, true, true);
-    }
-   
-}