fixing bug where we attempt to deference nil parameters. (#149)
fixing bug where we attempt to deference nil parameters. (#149)

* Allowing service instance's to be bindable if they are created without parameters.
shawn-hurley/ansible-service-broker,jmontleon/ansible-service-broker,jwmatthews/ansible-service-broker,jwmatthews/ansible-service-broker,jmontleon/ansible-service-broker,rthallisey/ansible-service-broker,eriknelson/ansible-service-broker,johnkim76/ansible-service-broker,johnkim76/ansible-service-broker,shawn-hurley/ansible-service-broker,shawn-hurley/ansible-service-broker,eriknelson/ansible-service-broker,jmontleon/ansible-service-broker,johnkim76/ansible-service-broker,eriknelson/ansible-service-broker,jwmatthews/ansible-service-broker,rthallisey/ansible-service-broker,rthallisey/ansible-service-broker