Attached the config file, the only setting that seems to touch things you don't want is indent_func_call_param which is true/false selecting indent one level or indent to open parens.  Quite frankly I found the indent one level awful so I picked open parens.  There seems no way of turning it off which is what we want.
 

The indentation problem only existed because the first version committed had mixed indentation, I am not sure but maybe it was a 0.14 problem with the setting, since I installed 0.15 everything is coming up tabs.  Hopefully this is fixed.

My real reason for suggesting a formatter was not for indentation but for other areas of the code eg spaces around ()s other operators etc.  I was simply trying to ensure that my code matched your expectations taking into account that the format is different to what I use most of the time, and being human I am going to get it wrong sometimes, no matter how often I re-read it.  Using a formatter was a way of fixing that, but unfortunately they all seemed to have side effects.  The one I suggested simply had the least.

Cheers
Lex