adding trim interface that keeps the original dtype storage
Merge branch 'master' into nipy/trim

* master: (264 commits)
  fixed paths
  Back to dev
  0.7 release
  Code cleanup.
  doc: updated inputs help to indicate FSL and AFNI inaccuracy when using bounds_by_brainmask
  Fix #493
  Fixes #459
  fixed doctests
  changelog
  fix: ants workflows setup
  BF: Fixed several issues with GroupAndStack interface
  DOC: Various clean up an improvements to docstrings.
  DOC: Added example to LookupMeta docstring
  ENH: Allow meta_keys input to LookupMeta be a mapping.
  minor fixes
  deprecated version should be a string, added AFNITraitedSpec for backward compatibility
  docs
  PEP8
  name_source can be a list, make "infolder" a deprecated name
  Removed unnecessary outputsspecs
  ...
enh: allow commandline interfaces to control terminal output
doc: added change note
fix: doctest for commandline
fix: failing flirt test
fix: ensure that commandline calls force terminal output if stdout or stderr is required
fix in NewSegment warp field output options
Merge pull request #505 from bpinsard/bug/spm

fix in NewSegment warp field output options
enh: remove logger dump added in 9d6b1a86921982b84f17b75ebf1a515f1d8710f7
Merge pull request #506 from yarikoptic/master

enh: remove logger dump added in 9d6b1a8 
BF: Use unique filenames for DAGMan workflows

Allows for multiple concurrently running DAGs, and is necessary due to
the use of -update-submit in the DAGMan call.
DOC: Fix documentation glitch
DOC: Update info on Condor and its plugins.

Also address the recent renaming of Condor -> HTCondor.
Merge pull request #509 from hanke/doc/condor

DOC: Update info on Condor and its plugins.
Merge pull request #508 from hanke/fix/condor_dagman

Close gh-507
Merge branch 'master' into nipy/trim

* master:
  DOC: Update info on Condor and its plugins.
  DOC: Fix documentation glitch
  BF: Use unique filenames for DAGMan workflows
  enh: remove logger dump added in 9d6b1a86921982b84f17b75ebf1a515f1d8710f7
  fix in NewSegment warp field output options
add doc
PEP8
DOctest fix