Merge pull request AuthorizeNet#359 from AuthorizeNet/nodependency-rc

Minimal dependency SDK - 2.0.0

Update Mapper.php

Merge pull request AuthorizeNet#353 from sharathkatteri/master

Fix for SDK-PHP AuthorizeNet#340

Merge pull request AuthorizeNet#338 from khaaldrogo/future

Changes for release 1.9.8

Update version 2.0.0-ALPHA and removed old model code

Merge pull request AuthorizeNet#315 from ashtru/master

Change version to 1.9.7

Adding new Akamai certificates

Release for adding new Akamai certificates

Update to 1.9.5

Update ANetEnvironment.php

Update ANetEnvironment.php