Update to latest version of the sdk V9 12/15/2015

[onema]

• Update classes with Bing Ads SDK for PHP
• Each class has been placed in it's own file using https://github.com/onema/classyfile
• The following files have been placed under the examples directory:
  1. AdIntelligenceClasses.php
  2. CampaignManagementClasses.php
  3. CustomerBillingClasses.php
  4. OptimizerClasses.php
  5. BulkClasses.php
  6. ClientProxy.php
  7. CustomerManagementClasses.php
  8. ReportingClasses.php
• Example files have been modified to include the composer autoloader