Update SimpleITK to 2.2.0

Author: blowekamp

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name='SimpleITK',
-    version='2.1.1.2',
+    version='2.2.0',
     author='Insight Software Consortium',
     author_email='[email protected]',
     packages=['SimpleITK'],