Return empty object instead of null for empty response

Signed-off-by: Byron Ruth <b@devel.io>
0.1.0 Final

Signed-off-by: Byron Ruth <b@devel.io>
0.2.0 Beta

Signed-off-by: Byron Ruth <b@devel.io>
Add Install section to README

Signed-off-by: Byron Ruth <b@devel.io>