Release/dep fixes

MANIFEST.in

 include test/*.py
 include test/*.f90
-recursive-include examples *.py *.cl *.floopy *.sh *.ipynb
+recursive-include examples *.py *.cl *.floopy *.sh *.ipynb *.cpp
 recursive-include contrib *.vim
 
 include build-helpers/*.sh

setup.py

@@ -39,9 +39,9 @@ setup(name="loo.py",
       install_requires=[
           "pytools>=2016.1",
           "pymbolic>=2016.2",
-          "genpy>=2016.1",
+          "genpy>=2016.1.2",
           "cgen>=2016.1",
-          "islpy>=2016.1.2",
+          "islpy>=2016.2",
           "six>=1.8.0",
           "colorama",
           "Mako",