upgraded pytest-mozwebqa and requests libs
removed the version dependency of pytest-mozwebqa
Merge pull request #578 from stupchiy/upgrade_libs

upgraded pytest-mozwebqa and requests libs
These tests pass now for some time + recreated payment account
Merge pull request #589 from AndreiH/unxfail-tests

These tests pass now for some time + recreated payment account
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/fxa'