Update to 1.0.1-dev broke master

[oesteban]

Seems like building docs fails for one workflow (nipype/workflows/smri/ants/ANTSBuildTemplate.py).

Apparently, the ignore_exception input should be dropped in favor of the new class attribute in interfaces. Before 1.0.0, nipype would only show a warning, but now after the version bump to 1.0.1-dev it raises an error (#2403).

We need to fix a couple of things:

• Make sure no legacy code remains setting interface.inputs.ignore_exception
• Make sure interfaces no longer support ignore_exception and terminal_output as inputs. In particular, double check with the Function interface.

https://circleci.com/gh/nipy/nipype/3178
https://circleci.com/gh/nipy/nipype/3176
https://circleci.com/gh/nipy/nipype/3172

Exception occurred in traits notification handler.
Please check the log file for details.
Exception occurred in traits notification handler for object: 
AffineTransformList = <undefined>
function_str = def MakeListsOfTransformLists(warpTransformList, AffineTransformList):
    return list(map(list, list(zip(warpTransformList, AffineTransformList))))

ignore_exception = True
warpTransformList = <undefined>
, trait: ignore_exception, old value: False, new value: True
Traceback (most recent call last):
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 519, in _dispatch_change_event
    self.dispatch( handler, *args )
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 482, in dispatch
    handler( *args )
  File "/src/nipype/nipype/interfaces/base/specs.py", line 140, in _deprecated_warn
    raise TraitError(msg)
traits.trait_errors.TraitError: Input ignore_exception in interface Function is deprecated. Will be removed or raise an error as of release 1.0.0 

180126-21:20:31,898 traits ERROR:
	 Exception occurred in traits notification handler for object: 
AffineTransformList = <undefined>
function_str = def MakeListsOfTransformLists(warpTransformList, AffineTransformList):
    return list(map(list, list(zip(warpTransformList, AffineTransformList))))

ignore_exception = True
warpTransformList = <undefined>
, trait: ignore_exception, old value: False, new value: True
Traceback (most recent call last):
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 519, in _dispatch_change_event
    self.dispatch( handler, *args )
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 482, in dispatch
    handler( *args )
  File "/src/nipype/nipype/interfaces/base/specs.py", line 140, in _deprecated_warn
    raise TraitError(msg)

traits.trait_errors.TraitError: Input ignore_exception in interface Function is deprecated. Will be removed or raise an error as of release 1.0.0 
Exception occurred in traits notification handler for object: 
averageAffineTranform = <undefined>
function_str = def MakeTransformListWithGradientWarps(averageAffineTranform,
                                       gradientStepWarp):
    return [
        averageAffineTranform, gradientStepWarp, gradientStepWarp,
        gradientStepWarp, gradientStepWarp
    ]

gradientStepWarp = <undefined>
ignore_exception = True
, trait: ignore_exception, old value: False, new value: True
Traceback (most recent call last):
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 519, in_dispatch_change_event
    self.dispatch( handler, *args )
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 482, in dispatch
    handler( *args )
  File "/src/nipype/nipype/interfaces/base/specs.py", line 140, in _deprecated_warn
    raise TraitError(msg)
traits.trait_errors.TraitError: Input ignore_exception in interface Function is deprecated. Will be removed or raise an error as of release 1.0.0 

180126-21:20:31,924 traits ERROR:
	 Exception occurred in traits notification handler for object: 
averageAffineTranform = <undefined>
function_str = def MakeTransformListWithGradientWarps(averageAffineTranform,
                                       gradientStepWarp):
    return [
        averageAffineTranform, gradientStepWarp, gradientStepWarp,
        gradientStepWarp, gradientStepWarp
    ]

gradientStepWarp = <undefined>
ignore_exception = True
, trait: ignore_exception, old value: False, new value: True
Traceback (most recent call last):
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 519, in _dispatch_change_event
    self.dispatch( handler, *args )
  File "/opt/conda/envs/neuro/lib/python3.6/site-packages/traits/trait_notifiers.py", line 482, in dispatch
    handler( *args )
  File "/src/nipype/nipype/interfaces/base/specs.py", line 140, in _deprecated_warn
    raise TraitError(msg)

traits.trait_errors.TraitError: Input ignore_exception in interface Function is deprecated. Will be removed or raise an error as of release 1.0.0 

[satra]

@oesteban - sorry, please ignore my comment in the other PR. you are correct that these should be moved to class level attributes.