Fix combined build and install of dynd-python and libdynd.
Fix combined build and install of dynd-python and libdynd.

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