puts specs test in a spec folder; handle more stubbing URL

spec/oar_properties_spec.rb

spec/spec_helper.rb

spec/stub_oar_properties/dump_oar_api_configured_server.json

..._properties/dump_oar_api_configured_server_with_disk.json

spec/stub_oar_properties/dump_oar_api_empty_server.json

...stub_oar_properties/load_data_hierarchy_stubbed_data.json

...roperties/load_data_hierarchy_stubbed_data_with_disk.json