update GeoparserSpec
update GeoparserSpec

-add new tests
	-it_should_return_an_empty_array_when_passed_null
	-it_should_return_an_empty_array_when_passed_empty_array
	-it_should_return_an_empty_array_when_passed_bad_formatted_array
	
-rename test: it_should_return_an_empty_array
	-to: it_should_return_an_empty_array_after_json_decoding_and_parsing
gios-asu/search-api