Fixes for PR #847

Added a test: https://github.com/nipy/nipype/pull/847#discussion_r13127785

Changed interface name
Updated CHANGE log
Updated auto-test file after name change
Updated test to fix problems
Fixed test, and checked out
Fixed doctest input that was failing
Merge branch 'enh/NormalizeMapsAlgorithm' into experimental

Conflicts:
	nipype/algorithms/misc.py