Change to make bolt-dist more user friendly for a fresh git clone

This request makes the upstream pending changes to the following files as patches instead of external files:
* vendor/silex/web-profiler/Silex/Provider/WebProfilerServiceProvider.php
* vendor/ircmaxell/random-lib/lib/RandomLib/Source/URandom.php

The last change is a simple BASH test to ensure the 'files' directory exists and creates it if not.