MAINT: mvn distn -- do not choke on large determinants, and make pinv and pdet agree on which singular values are small
TST: remove a call to a numpy function that is too new to use
MAINT: use a more standard python version compatibility preamble
Merge pull request #1 from argriffing/jvkersch-mvn

MAINT: mvn distn -- do not choke on large determinants, and make pinv an...