Fixes Bug 789545 - Prevents reversion of the daily poert from ADU by O/S to ADU by Version.
Addressing reviewer comments.
Merge pull request #1530 from brandonsavage/bug789545reversionbug

Fixes Bug 789545 - Prevents reversion of the daily form from ADU by O/S to ADU by Version. r=ossreleasefeed
fixes bug 875106 - test for skiplist
Fixes bug 913584 - removing uses of commonconfig at unittest/external/postgresql/*
debugging dsn parameters
change subclasse of test_setupdb
Merge pull request #1479 from GabiThume/bug913584

Fixes bug 913584 - removing uses of commonconfig at unittest/external/postgresql/*
Merge pull request #1531 from GabiThume/bug875106

Fixes bug 875106 - test for skiplist
fixes bug 918875 - Correlations on report list fails if report list has no OSes, r=rhelmer