Submodule classes/shgysk8zer0/core fd88024..84ca192:

> More composer fixes
> More composer fixes.
> Reverted to standard .php extension
> Composer config finally has all requirements
> Require >= PHP 5.5
> Updated composer config
> Added "require" to composer
> Made a copy of LICENSE
> Added composer.json file
Submodule classes/shgysk8zer0/core 84ca192..6b18b14:

> Revert class extensions to .class.php
Merge branch 'feature/52'