Bug 1020695: Update Mozilla to use NSS 3.16.2 Beta 4. Includes fixes for
bug 1013088, bug 996237, bug 970539, bug 1016567, bug 485732, bug 334013,
bug 959864, bug 1016836, bug 1016811, bug 1018536, bug 996250, bug 1009227,
bug 963150, bug 1007126, bug 1021102.