merge with upstream master

helix/validators/csv_input_validator.py

@@ -30,7 +30,7 @@ class CsvInputValidator(object):
 
             file_validation_chain = [
                 CsvInputValidator.validate_file_for_panel_types,
-                CsvInputValidator.validate_for_spacing,
+               # CsvInputValidator.validate_for_spacing,  # disabling this feature for the moment
             ]
             result = self.run_validation_chain(headers, rows, file_validation_chain)
             if result:

helix/validators/dxf_input_validator.py

@@ -1,5 +1,3 @@
-from helix.constants.file_validation_error import FileValidationMessage, FileValidationError
-
 
 class DxfInputValidator(object):
     def __init__(self, _):