Backed out 8 changesets (bug 1015518, bug 900551, bug 1011518, bug 846200) for build bustage

Backed out changeset 59eb7edaa6ed (bug 1015518)
Backed out changeset 04a531d5647e (bug 1011518)
Backed out changeset 9ac939654549 (bug 1011518)
Backed out changeset 2f707489d892 (bug 900551)
Backed out changeset f2a0a448e563 (bug 900551)
Backed out changeset f130f54ea09a (bug 900551)
Backed out changeset 9d38e8901847 (bug 846200)
Backed out changeset 744da032a2de (bug 846200)