BUG: Fix tests that expect numpy 1.9 to implement __numpy_ufunc__.

Change Numpy version tests to check for 1.10 instead.
DEP: Disable sparse inplace DeprecationWarnings for Numpy < 1.10.

I'm not sure that this is __numpy_ufunc__ dependent, but I suspect
so.
Merge pull request #3859 from charris/update-numpy-ufunc-version

BUG: Fix tests that expect numpy 1.9 to implement __numpy_ufunc__.