Support multiple metric arguments per stage.
Prevent warning issued from wrong version of Dipy constrained by tensors.py
BUG: initial_moving_transform_com needs default

The initial_moving_transform_com needs to be defaulted
to false in order to maintain backwards compatibility.

When this is not default = False, it results in

initial_moving_transform = <undefined>
initial_moving_transform_com = <undefined>

Error:
Registration requires a value for input 'invert_initial_moving_transform' because one of initial_moving_transform is set. For a list of required inputs, see Registration.help()

Adding try catch block to ensure that conversions occur properly, or use defalut behavior
if boolean is undefined.

File "/Shared/sinapse/sharedopt/20130601/RHEL6/DTIPrep/BRAINSTools-build/NIPYPE/nipype/interfaces/ants/registration.py", line 471, in _format_arg
int(self.inputs.invert_initial_moving_transform))
TypeError: int() argument must be a string or a number, not '_Undefined'
added back the fstat outputs to fsl flameo interface

Conflicts:

	nipype/interfaces/fsl/model.py
Added human order sorting for FLAMEO outputs, fixed abspath for Cluster
outputs.
PEP8
Merge pull request #615 from chrisfilo/enh/FLAMEO

Enh/flameo
added handling of output in case where FEAT creates an ica directory rather than a feat directory
Merge pull request #614 from BRAINSia/FixAntsRegistrationRegression

BUG: initial_moving_transform_com needs default
Merge pull request #579 from FredLoney/ants_multiple_metrics_per_stage

Support multiple metric arguments per stage.
ref: use info in fsf file to get output directory
Merge pull request #621 from poldrack/master

added handling of output in case where FEAT creates an ica directory rat...
doc: updated to allow for proper formatting
Merge pull request #607 from mick-d/master

Prevent erroneous warning generated by tensors.py in interface Dipy
BF: Let DAGMan submit files have a final newline
RF: Replace convoluted logic with template and keyword expansion
RF: Rename and uniformize option handling (backward-compatible)
NF: Wrapper command for DAGMan jobs

This enables checkpoint/migration wrapper to be combined for Nipype
workflows.
BF: Forgot to put the 'queue' command back in
NF: Option to block until DAGMan has finished

This will make it easier to use DAGMan-based workflows in other script
that do further processing of the output.