Change bullets in affiliated package instructions to numbers
Update index.rst
use suggestion from @astrofrog
Merge pull request #2930 from ameisner/doc_edit

wcs example clean-up
Note support of numpy 1.9 in 0.4.2 section [skip ci]
Merge pull request #2927 from mhvk/numpy-1.9

Support numpy 1.9
Merge pull request #2929 from eteq/make-affil-intructions-numbered

Change bullets in affiliated package instructions to numbers
Support numpy 1.10 (master) by adding support for np.cbrt [closes #2936]
Introduce __numpy_ufunc__, adjust tests
Ensure testing doesn't segfault due to numpy #4855