Bug 978709 - Part 1: idl changes to support IPv4v6. f=echen r=vicamo
Bug 978709 - Part 2: v2
Bug 978709 - Part 3.1: v2
Bug 978709 - Part 3.2: v1
Bug 978709 - Part 4: v1
Bug 978709 - Part 5: v1
Bug 978709 - Part 6: WIP
Bug 978711 - 1/2: