PKG: MSVC build fixes by Christoph Gohlke.
Set random seed value to ensure tests always pass
Set random seed value for denoising tests
ENH: Add SimpleITK IO plugin.

IO plugin for SimpleITK, http://simpleitk.org/

imread and imsave implemented. Tests based off the PIL tests.
Swapped the direection that the histograms point in the hog visualisation
Merge pull request #420 from ahojnnes/random-seed

TST: Set random seed value to ensure tests always pass.
Merge pull request #422 from colincsl/hog_visualisation

HOG Visualisation bugfix
Do not install the doc package
Merge pull request #423 from cgohlke/patch-1

Do not install the doc package
Fix wrong include paths for shared subpackage
Merge pull request #425 from ahojnnes/shared

BUG: Fix wrong include paths for shared subpackage.
use SSE to add/subtract histograms
Rewrite histogram operations to remove GPL license on Perreault's code
fix: Otsu(8bit) and bilateral functions docstrings
Merge pull request #433 from odebeir/fix_rank_doc

DOC: Document 8 vs 16-bit input for Otsu / bilateral functions.
fix UTF-8
remove typedef, use numpy type in its place
add casts to suppress compiler warnings
move _histogram.h to _shared/vectorized_ops.h, and copyright info to CONTRIBUTORS.txt
pep8