qa_tests/hazard/classical/case_11/test:

Updated expected mean values. I suspect that the values are just very slightly
different because the hazard curve finalization is being done in the database
(in a stored function) and postgres is handling numerical precision a bit
different from pure python.
Merge pull request #1062 from larsbutler/fix-cls-haz-qa-case-11

Stabilize classical hazard QA test case 11

[r=matley] [f=*trivial]