v2: Updates

* Simplifies & beautifies everything
* Introduces a new Class system.
* Errors are defaulted to AWS's handler.
* New function names & more efficient handling.
* Should fix a majority of the errors.

Please read the README for more!

aws/Aws/PhpHash.php

@@ -6,7 +6,7 @@ namespace Aws;
  */
 class PhpHash implements HashInterface
 {
-    /** @var resource */
+    /** @var resource|\HashContext */
     private $context;
 
     /** @var string */
@@ -63,7 +63,7 @@ class PhpHash implements HashInterface
     /**
      * Get a hash context or create one if needed
      *
-     * @return resource
+     * @return resource|\HashContext 
      */
     private function getContext()
     {