Backed out 6 changesets (bug 914826) for bustage.

Backed out changeset a4a029c13179 (bug 914826)
Backed out changeset d16460fc0518 (bug 914826)
Backed out changeset b28cb0ae1853 (bug 914826)
Backed out changeset 5b4ce1d4d09b (bug 914826)
Backed out changeset 58d96448609a (bug 914826)
Backed out changeset 52b319afe965 (bug 914826)