Corrected path to laravel
Added gitignore
included load_laravel.php in run.php
Added base for unit tests
Catch Exception when download fails
Class is now trying to download the file a in the class defined number of times
Fixed logic error in retrying to download the file
downloadCsv returns now the file path
Refactored the unit tests
Increased the number of chunks that get extracted from 4096 to 20000
Added method to read chunks from the extracted csv file