Backed out 4 changesets (bug 745283) for conflicting with the backout of bug 786419 a=backout

Backed out changeset a1af198d91bd (bug 745283)
Backed out changeset 9fc6f4275bbb (bug 745283)
Backed out changeset 37c10c9f2a4d (bug 745283)
Backed out changeset bc0ab47e8ac7 (bug 745283)

--HG--
rename : netwerk/test/unit/test_udpsocket.js => netwerk/test/unit/test_bug952927.js
Backed out changeset 1ed271ffb59c (bug 786419) bug causing bug 786419 a=backout