add todo file
add util class with humandReadableFileSize Conveter
Use humand readabel file size for simple validator
Correct mistake in human readable filesize conversion
Updated readme file
Adde some setences for better explanisation of the Humand readable format
Corrected a mistake
Added support for file name generators and some sample file name generators
Refreshed Readme file to reflect new Features
Update Util.php

Added missing static keyword.
Merge pull request #13 from thenovacreator/master

Human-readable file size setting for the default validator, file naming abstraction and a few implementations (MD5, Random and Simple)