Update pfs.py
Fix failing tests
Merge pull request #179 from magopian/fix-failing-tests

fix failing tests on jenkins
fix jenkins build
set up travis (bug 1050156)
Bump amo-validator
Merge pull request #188 from magopian/1050156-travis

set up travis (bug 1050156)
Merge pull request #180 from jpfeif66/patch-6

Update pfs.py