Merge branch 'issue_client_get_channel' into 'master'

Correct parsing of channel parameter in client

See merge request rhodes/model_server!51

model_server/clients/ilastik_map_objects.py

@@ -18,7 +18,7 @@ def main(request_func, in_abspath, params):
 	
 	px_ilp = params['pixel_classifier_path']
 	ob_ilp = params['object_classifier_path']
-	channel = getattr(params, 'channel', None)
+	channel = params.get('channel', None)
 	mip = params.get('mip', False)
 	
 	# configure input and output paths