Add autocomplete boundary.rect ciao test

test/ciao/autocomplete/boundary_rect_valid.coffee

@@ -0,0 +1,37 @@
+
+#> focus point
+path: '/v1/autocomplete?text=cairo&boundary.rect.min_lat=30&boundary.rect.max_lat=32&boundary.rect.min_lon=29&boundary.rect.max_lon=31'
+
+#? 200 ok
+response.statusCode.should.be.equal 200
+response.should.have.header 'charset', 'utf8'
+response.should.have.header 'content-type', 'application/json; charset=utf-8'
+
+#? valid geocoding block
+should.exist json.geocoding
+should.exist json.geocoding.version
+should.exist json.geocoding.attribution
+should.exist json.geocoding.query
+should.exist json.geocoding.engine
+should.exist json.geocoding.engine.name
+should.exist json.geocoding.engine.author
+should.exist json.geocoding.engine.version
+should.exist json.geocoding.timestamp
+
+#? valid geojson
+json.type.should.be.equal 'FeatureCollection'
+json.features.should.be.instanceof Array
+
+#? expected errors
+should.not.exist json.geocoding.errors
+
+#? expected warnings
+should.not.exist json.geocoding.warnings
+
+#? inputs
+json.geocoding.query['text'].should.eql 'cairo'
+json.geocoding.query['size'].should.eql 10
+json.geocoding.query['boundary.rect.min_lat'].should.eql 30
+json.geocoding.query['boundary.rect.max_lat'].should.eql 32
+json.geocoding.query['boundary.rect.min_lon'].should.eql 29
+json.geocoding.query['boundary.rect.max_lon'].should.eql 31