Revise fix for numpy issue during installation - only need install_requires and setup_requires

setup.py

 #!/usr/bin/env python
 # -*- coding: latin-1 -*-
-from setuptools.command.build_ext import build_ext as _build_ext
-
-class build_ext(_build_ext):
-    def finalize_options(self):
-        _build_ext.finalize_options(self)
-        # Prevent numpy from thinking it is still in its setup process:
-        __builtins__.__NUMPY_SETUP__ = False
-        import numpy
-        self.include_dirs.append(numpy.get_include())
 
 
 def get_config_schema():
@@ -214,7 +205,7 @@ def main():
                 ],
 
             install_requires=[
-		"numpy",
+		        "numpy",
                 "pytools>=2014.2",
                 "pytest>=2",
                 "decorator>=3.2.0",