Use the (new) package_numpy_1_8 rather than package_numpy_1_7

This now exists on the Test Tool Shed, main Tool Shed to follow...
See http://testtoolshed.g2.bx.psu.edu/view/iuc/package_numpy_1_8
and later http://toolshed.g2.bx.psu.edu/view/iuc/package_numpy_1_8