Please unblock statsmodels/0.8.0-9 from -proposed

[Rebecca N. Palmer]

(I tried #ubuntu-release first, but from the lack of response, "this 
channel is logged" evidently doesn't imply "out of hours posts will be 
read the next day".  Should 
https://wiki.ubuntu.com/ProposedMigration#How_could_installing_a_package_into_the_release_pocket_possibly_break_other_packages.3F 
be changed to only suggest posting there during UK working hours?)

statsmodels 0.8.0-9 is currently held in -proposed because of an 
autopkgtest "regression" that is actually an increase in test coverage. 
(The upstream tests were not run in 0.8.0-1 to -7, but are in -8 and -9.)

The underlying bug 1819227 is probably real but not a regression: on 
Debian, it exists in at least 0.8.0-7, 0.8.0-9 and 0.9.0-2.

Disabling the tests in question on armhf is possible, but obviously 
doesn't actually fix the bug.