Updating sample stub to allow self signed certificates

While deploying cf-mysql-broker, we found that if you do not include http or https in the cc_api_uri the broker defaults to generic, which causes an error. Added a note to the AWS sample stuff for consistency with the vSphere stub.

Updated the sample stubs to include passing of the skip_ssl_validation flag to enable self signed certs.

Sorry I hosed my repo with a badly though out force push...