Backed out changeset 745c46904041 (bug 1001157) for mochitest2,3 and dt3 bustages on a CLOSED TREE r=bz
Backed out 4 changesets (bug 997285) for mochitest-2,3 and dt3 bustages on a CLOSED TREE r=bz

Backed out changeset 1bc5b733beac (bug 997285)
Backed out changeset ec145c86be71 (bug 997285)
Backed out changeset c0b8aef8b570 (bug 997285)
Backed out changeset 477094180dff (bug 997285)