to follow same pattern as in Java and C# SDK, rename with_http_secure to with_secure and return self on with_proxy and with_secure.
to follow same pattern as in Java and C# SDK, rename with_http_secure to with_secure and return self on with_proxy and with_secure.

SpectraLogic/ds3_python_sdk,chanchett/ds3_python_sdk,chanchett/ds3_python_sdk,SpectraLogic/ds3_python_sdk,chanchett/ds3_python_sdk_,chanchett/ds3_python_sdk,SpectraLogic/ds3_python_sdk