Feature Proposal : Make All Python Extensions User Configuration Independent (#1435)

* Updated all Python extension packages to use 'setup_py' on install.

* Fixed a few minor style issues with the updated Python packages.

share/spack/csh/convert-pyext.sh

@@ -1,5 +0,0 @@
-#!/bin/bash --noprofile
-PYEXT_REGEX=".*/.*/package.py"
-
-find var/spack/repos/builtin/packages/ -type f -regextype sed -regex ${PYEXT_REGEX} -exec \
-    sed -i 's/python('\''setup.py'\'', /setup_py(/' {} \;