Add --target argument to setup.py for selecting dynd/dynd.ndt/dynd.nd installs.
Add --target argument to setup.py for selecting dynd/dynd.ndt/dynd.nd installs.

ContinuumIO/dynd-python,izaid/dynd-python,insertinterestingnamehere/dynd-python,mwiebe/dynd-python,mwiebe/dynd-python,mwiebe/dynd-python,insertinterestingnamehere/dynd-python,insertinterestingnamehere/dynd-python,izaid/dynd-python,insertinterestingnamehere/dynd-python,ContinuumIO/dynd-python,ContinuumIO/dynd-python,ContinuumIO/dynd-python,izaid/dynd-python,mwiebe/dynd-python,izaid/dynd-python