Add a test to make sure that the group can be created & saved if an street_suffix is provided.
Add a test to make sure that the group can be created & saved if an
street_suffix is provided.

nyc-mud-turtles-2015/nghborly,kimchanyoung/nghborly,kimchanyoung/nghborly,nyc-mud-turtles-2015/nghborly,nyc-mud-turtles-2015/nghborly,kimchanyoung/nghborly