COMP: Changes needed to build with Visual Studio 2010
Merge pull request #99 from BRAINSia/WindowsFixes

COMP: Changes needed to build with Visual Studio 2010
ENH:  Copying logCmd output from antsCT.
BUG:  Forgot that the convergence depends on this.
ENH:  Remove inverse warped atlas images.
ADD: Summary measures for motion correction
ADD: documentation
ENH: fix typos
COMP: Rearranged ImageMath function
Merge branch 'FixImageMath' of https://github.com/BRAINSia/ANTs

Conflicts:
	Examples/ImageMath.cxx
BUG: Fix ImageMath warning about operation not found, which was still happening on some ops
because the warning was being printed before all possible operations were searched.

BUG: Fixed some typos in ImageMathHelper calls where dimension was set to 3 instead of 4

ENH: Added option in ImageMath to set nonzero background diffusivity when masking tensors.
Helps avoid annoying interpolation artifacts when warping tensor images.
WIP: if image driven, dont sort
ENH:  Redirect registration output to log files.
WIP: test sparsification of input initializer vector
ENH: remove sparsification of init vec
DOC: sparseness in output of cca
WIP: make sparsification faster/better (?) and sparsify initialization
BUG:  Restoring functionality after mask enhancements.
ENH: Checking to see if the warped images/labels exist before inputing to MALF.
BUG:  Grasshopper-level bash fu.