Merge pull request AuthorizeNet#192 from kikmak42/master

Removed redundant dependencies, thanks guys!

Update ANetEnvironment.php

Merge pull request AuthorizeNet#173 from AuthorizeNet/future

Merging Future to master

merged future changes

Update README.md

Update README.md

Update composer.json

Update composer.json

Update composer.json

Merge pull request AuthorizeNet#53 from fulldecent/patch-1

Remove error if autoloader does not find class